11 DPO, BFN then BFP: A Journey through the Early Pregnancy Days

Trying to conceive can be an emotional rollercoaster, filled with anticipation, anxiety, and a whole lot of waiting. The day’s post ovulation (DPO) can feel especially long as women wait to take a pregnancy test.

This article will focus on the journey of 11 days post ovulation (DPO), starting with a big fat negative (BFN) result, then got a BFP – a big fat positive.

What is DPO, BFN, and BFP?

Before diving into the topic, it’s crucial to understand the terms DPO, BFN, and BFP. DPO stands for “days post ovulation,” which is a crucial point in a woman’s menstrual cycle. BFN and BFP are acronyms commonly used in pregnancy forums, with BFN standing for “big fat negative,” referring to a negative pregnancy test result, and BFP meaning a test positive or “big fat positive,” indicating a positive pregnancy test.

11 DPO: Understanding the Timeline


Ovulation and the Early Signs

Around the midpoint of a woman’s cycle, ovulation occurs. This is when an egg is released and is ready for fertilization. After ovulation, the egg travels down the fallopian tube where it could meet sperm and become fertilized.

The Wait and Test Period

Once ovulation has occurred, the body starts preparing for a possible pregnancy. The hormone progesterone rises, which can cause symptoms such as sensitive breasts, cramping, or fatigue. Many women might test around 11 DPO as early pregnancy tests can sometimes detect pregnancy at this stage. However, some women might see a negative test result at this point, hence the BFN at 11 DPO.

What’s happening in your body at 11 DPO?

At 11 days post ovulation (DPO), your body is going through various hormonal changes, and if conception has occurred, it’s in the midst of some significant early-stage pregnancy developments.

Here’s a general breakdown:

  1. Hormonal Fluctuations: After ovulation, the hormone progesterone rises to thicken the lining of the uterus to prepare for a possible pregnancy. If you’re not pregnant, progesterone levels will decrease again around 14 DPO, triggering the start of a new menstrual cycle. If you are pregnant, progesterone levels will continue to rise to support the pregnancy.
  2. Implantation: If a sperm has fertilized an egg, the resulting blastocyst (a cluster of cells) travels down the fallopian tube and into the uterus. Around 9-12 DPO, the blastocyst implants itself into the lining of the uterus. This process, called implantation, can sometimes cause light spotting or implantation bleeding, as well as implantation cramps.
  3. Early Pregnancy Symptoms: At 11 DPO, some women might start experiencing early pregnancy symptoms, although many will not have symptoms this early. These symptoms could include mild cramping, fatigue, bloating, mood swings, or sensitive breasts, and they’re largely due to the increase in pregnancy hormones like hCG and progesterone.
  4. hCG Production: If implantation has occurred, the cells that will eventually form the placenta start producing the hormone hCG. This is the hormone that a pregnancy test detects. However, at 11 DPO, levels may still be too low for a pregnancy test to detect.

It’s important to note that every woman’s body is different, and these processes can happen at slightly different times for everyone. Not all women will experience implantation spotting or early pregnancy symptoms, and the lack of these symptoms does not necessarily mean you aren’t pregnant.

Understanding BFN at 11 DPO


Reasons for a Big Fat Negative Pregnancy Test

A BFN 11 DPO, although disheartening, does not conclusively mean one is not pregnant. Some reasons for a BFN could include testing too early, low levels of the pregnancy hormone human chorionic gonadotropin (hCG), or a late implantation of the embryo.

Possible Symptoms with a BFN at 11 DPO

Despite a BFN, some women might experience pregnancy symptoms such as nausea, bloating, and a missed AF (period). Remember, ladies, our bodies are complex and different, and the experience can vary greatly from person to person.

The Twist: BFN to BFP


When Can You Expect a BFP after BFN at 11DPO?

This depends on the individual and the sensitivity of the pregnancy test used. Some women might see a BFP as early as 12 DPO, while others might only see a positive result a few days after their missed period.

Pregnancy Symptoms that May Hint a Big Fat Positive Pregnancy Test is on the Way

While a faint line on a pregnancy test could be an early sign of a BFP, symptoms such as a missed period at AF date , increased fatigue, and heightened sensitivity to smells may also indicate a positive result is on the way.

At How Many DPO are you most likely to be tested Positive?

The most common day to detect a positive pregnancy test, or Big Fat Positive (BFP), varies widely between individuals due to differences in the timing of ovulation, conception, and implantation. However, in general, many women may begin to see a positive result around 12 to 14 days post-ovulation (DPO).

That said, the sensitivity of the pregnancy test plays a major role in when a positive result might first appear. Some “early detection” pregnancy tests, like First Response Early Result or Clearblue Early Detection, claim to detect pregnancy hormones as early as 5 days before a missed period, which is roughly equivalent to 10 DPO. But remember, these results can be less accurate and lead to false negatives because hCG levels might still be too low to detect at this stage.

It’s worth noting that the levels of hCG, the hormone detected by pregnancy tests, double approximately every 48 to 72 hours during the early weeks of pregnancy. Therefore, the chance of getting a positive result increases significantly with each passing day after the missed period.

It’s always best to confirm results with a healthcare provider, especially if you’ve taken an early test and received a negative result, but your period still hasn’t started.

Which pregnancy tests are most accurate at 11 DPO?

The most accurate pregnancy tests at 11 days post ovulation (DPO) are typically those that are labeled as “early detection” or “early result” pregnancy tests. These tests are designed to detect lower levels of hCG (human chorionic gonadotropin) hormone compared to standard tests, which can make them more sensitive to early pregnancy.

Two popular brands for early detection pregnancy tests are:

  1. First Response Early Result (FRER): This is one of the most sensitive over-the-counter pregnancy tests available. The manufacturers claim that it can detect pregnancy up to 6 days before a missed period, which would be around 11 DPO for many women. However, as with any test, accuracy increases the closer you are to your expected period date.
  2. Clearblue Early Detection: This test is also designed to detect pregnancy early and can be used up to 5 days before your missed period. Similar to FRER, the accuracy increases as you get closer to your missed period.

Keep in mind, while these tests can potentially detect pregnancy at 11 DPO, not all pregnancies will be detectable this early. The hCG levels vary widely between individuals and can be influenced by the timing of implantation. Therefore, even with a negative result at 11 DPO, there is still a chance of pregnancy, and testing should be repeated after a few days if the menstrual period does not start.

As always, for the most accurate results, it’s recommended to follow the instructions provided with the test and confirm results with a healthcare provider.

Baby’s Amazing Development Track

The Initial Days

From the point of conception, the baby embarks on an amazing development track. Even before a positive pregnancy test, the fertilized egg starts dividing and growing into a bundle of cells.

The Role of HCG levels

Human chorionic gonadotropin (hCG) is a hormone produced after implantation. The hCG levels rise rapidly in the early days of pregnancy, and it’s this hormone that pregnancy tests detect.

The Emotional Journey

Keeping Your Fingers Crossed and the Role of Baby Dust

“Baby dust” is a term used in the TTC community to wish someone good luck in conceiving. It’s a form of positive energy, a sprinkle of hope, a wish for a baby soon. As most women continue testing and hoping, the concept of baby dust holds special meaning.

Most Women’s Stories

Patience, Stress, and the Long Journey

Many women share their stories of finally getting to get a BFP, after several BFNs. It’s a testament to patience, enduring the stress, and understanding that conception can be a long journey.

The Same Boat: Shared Experiences in the Same Cycle

There’s comfort in shared experiences. Many women find solace in knowing they are not alone and many are in the “same boat,” going through similar experiences in the same cycle.


The journey from BFN to BFP can be a whirlwind of emotions. It’s filled with anticipation, anxiety, patience, and eventually, joy. While a BFN at 11 DPO can be disheartening, it’s important to understand that it does not conclusively mean one is not pregnant. The best advice is to wait a few more days and test again. You may just get that BFP you’ve been waiting for.



What does 11 DPO BFN mean?

11 DPO BFN means that a woman has taken a pregnancy test at 11 days post ovulation (11 DPO) and it has returned a big fat negative (BFN) result, meaning the test does not detect pregnancy at that time.

Can a BFN at 11 DPO turn into a BFP?

Yes, a BFN at 11 DPO can turn into a BFP. This is because the level of the pregnancy hormone human chorionic gonadotropin (hCG), which pregnancy tests detect, can be quite low at 11 DPO and might not be detected by the test. As hCG levels rise rapidly in early pregnancy, testing a few days later might result in a BFP.

What symptoms might I experience at 11 DPO?

Symptoms at 11 DPO can vary from person to person. Some may experience signs similar to premenstrual symptoms, such as breast sensitivity, bloating, cramping, or fatigue. Some may have no symptoms at all. It’s also possible to experience early signs of pregnancy, like nausea or increased sensitivity to smells.

When should I take a pregnancy test?

It’s usually recommended to wait until the first day of your missed period to take a pregnancy test for the most accurate result. However, some early detection pregnancy tests can be used a few days before your expected period. Remember, the further along you are in the pregnancy, the higher the level of hCG, leading to more accurate results.

What do BFP and BFN mean?

BFP stands for “Big Fat Positive,” referring to a positive pregnancy test result. On the other hand, BFN stands for “Big Fat Negative,” which indicates a negative pregnancy test result.

What does “AF” Mean in this context?

In the context of discussing ovulation, pregnancy, and menstrual cycles, “AF” stands for “Aunt Flo.” This term is a common euphemism used in many online communities to refer to menstruation or a woman’s period.

So, when you come across phrases like “waiting for AF,” it means waiting for the menstrual period to start. Similarly, “AF is late” means the menstrual period has not started as expected based on the woman’s usual cycle.

Is 11 DPO too early for a blood test?

Yes, 11 DPO might be too early for a blood test to detect pregnancy in some cases. There are two types of blood tests for pregnancy: quantitative and qualitative.

A quantitative blood test, or beta hCG test, measures the exact amount of hCG in the blood. This test is very sensitive and can detect even very low levels of hCG, often before a missed period. However, at 11 DPO, hCG levels might still be too low to register on the test, particularly if implantation occurred later in the cycle.

A qualitative hCG blood test simply checks to see if hCG is present. It gives a “yes” or “no” answer to the question “are you pregnant?” Like a urine test, it generally requires higher levels of hCG to return a positive result.

If you take a blood test at 11 DPO and it’s negative, but you still suspect you might be pregnant, you should repeat the test after a few days or wait to see if your period arrives.



This post is written and edited by Sandy who is a clinical pharmacist with over 20 years of experience specializing in pre-natal and post-natal care.