12 DPO Symptoms: In Pregnancy & BFP

12 DPO symptoms is the 12 day post ovulation for women who are trying to get pregnant, one thing to pay attention to is the menstrual cycle. It may feel for like ages during the 2-week wait between your ovulation and when you take a pregnancy test. You may also be tempted to look at the symptoms you feel after your ovulation to know if you can see your  BFP (big fat positive) this month .In fact, after your 12 days post ovulation (DPO), your home pregnancy test may come out positive. 

Most people have 28-day menstrual cycle, this means that the chance of getting pregnant is highest for approximately six consecutive days. Since ovulation occurs when the ovaries release eggs, the12 days past ovulation is measured from that point onward. When you ovulate, your body produces more progesterone and this makes your basal body temperature (BBT) to rise slightly (by less than a degree).

When you track your BBT every day for at least during your three cycles at least, you can be able to know if your ovulation increases your temperature. Apart from checking your basal body temperature, you can use apps that track ovulation like Flo, My calendar and others.


Sperm must enter the Uterus

For pregnancy to occur, sperm must be released inside the uterus either by having sex or using assisted reproductive measures. The sperm must swim to the fallopian tubes to meet the eggs.

The Ovary must released Eggs

The eggs must be released by the ovaries when you ovulate. The released eggs are now picked up by the fallopian tubes before being transported. To know when you are ovulating, you can buy test strips, these strips can detect a surge in luteinizing hormone (LH). You can also use ovulation tracker apps.

The sperm and the egg must meet

The meeting point for the egg and the sperm is the fallopian tube. The fallopian tube connects the ovaries to the uterus and is also the meeting point for the sperm and the egg for fertilization to occur. The egg is only capable of being fertilized for 12 to 24 hours after being released from the ovary.

The Embryo starts its journey to the Uterus

After the egg is fertilized by the sperm, they become an embryo. The embryo leaves the fallopian tube to be implanted in the uterine lining where it continues growing. The embryo can be implanted as early as 5 or 6 days, sometimes it can be as late as 11 or more DPO. National Library of Medicine in 1999 carried out a study which shows that days 8, 9, and 10 DPO tend to be the most common for successful implantation

The Cells start to produce Human Chorionic Gonadotropin (HCG)

This happens after the embryo has been implanted successfully in the uterine. The HCG is the hormone that will make your pregnancy test turn positive. The levels of HCG are usually very low at first but will increase steadily during the first several weeks of a healthy pregnancy.

How early the pregnancy test shows positive depends on the time these events will take place and how much pregnancy hormone you have built up in your system. At 12 DPO, those with predictable 28-day cycles are still a couple of days out from missing their periods. 

12 DPO Symptoms


Our body differs and so the symptoms another person experienced may not be the same as you will. You should not judge your body based on others testimonies. In fact, some may not have the symptoms of 12 DPO and still end up being pregnant. Some of the earliest symptoms are:

Implantation Bleeding

There may be light bleeding or spotting about 10 to 14 days after conception, the bleeding is as a result of the egg burrowing into the uterine lining. Many people mistake this spotting to them seeing their period but this can be a sign of implantation.

However, the blood comes out in smaller amount that your period would have and do not usually last more than 3 days. The color can range from pink to red to brown or black. Bleeding is a less common early pregnancy sign.

Cervical Mucus

Discharge is common during ovulation or the days before the period come. It is also common during pregnancy because of your hormone levels that are changing, increased blood flow to your vagina, and even changes in your cervix. Cervical mucus during pregnancy is milky white in color, sticky in texture, but should not have a bad smell.

Tender Breasts

Pregnancy comes with lots of changes in your body including the hormones. These changes in your progesterone will make your breasts to become more tender and sensitive. They can also become bigger in size or feel heavier than normal.

The areolas (which is the area of skin surrounding your nipple) will become darker. Breasts change is one of the earliest signs that people feel in their first trimester, it can also gradually fade away after this trimester.

Basal Body Temperature Increase

You may feel slight body temperature increase by around a half to a full degree Fahrenheit after ovulation. If your become pregnant, this temperature may stay high. But if not, it goes down before your period, signaling the start of a new menstrual cycle.

Morning Sickness

This is the most common sign associated with vomiting and feeling nauseous. It can even start as early as few weeks into pregnancy, however, it also depends on your body’s sensitivity to hormonal changes. 
There is no cause for alarm if you do not experience this, you may be among the lucky ones that go not get sick when pregnant.


Cramping may come from the egg burrowing into the lining and then from the uterus slowly stretching as it grows. Even if you don’t experience implantation spotting, you may feel cramping associated with implantation or early pregnancy in general. These cramps are milder than period cramps and may appear at intervals for some days.

Decreased Energy

You may feel tired because of the higher levels of progesterone circulating in the body. This will make you feel sleepy most of the time, it is normal as many others also feel fatigue after one week of conception. So, you can have that sleep to help you with your fatigue.

Increased Urination

One of the early signs is that you will become a regular customer to the bathroom, this is caused by the increase in your hCG. When the hCG is increased, blood flow to the entire pelvic area, including the bladder is also increased.


You may experience bloating, heartburn or constipation because of the increase in your hormonal levels. The estrogen and progesterone levels as they become higher slow digestion, which is responsible for these unpleasant symptoms.

Food Aversions

Some people may become extremely sensitive to smells and tastes. The hormones are responsible for this too.


12 DPO symptoms in BFP means that a home pregnancy test is positive. For a home pregnancy test to be positive, there must be two parallel lines or two lines that form a plus sign, depending on your brand of test. This initials were formed in fertility/infertility forums and women’s websites or blogs. Pregnancy tests detect if your urine has the HCG hormone, which the body starts to produce soon after the fertilized egg attaches to your uterus.

HCG hormones continue to rise rapidly in the days that follow, so at 12 DPO symptoms you may get a clear positive on your test (Flo Health). The test is advised to be done after you have missed your period. After the test has shown positive, you can confirm the result by seeing a doctor for blood test too.


While BFP stands for big fat positive, BFN means big fat negative. For a home pregnancy test to be BFN, there must be one line on a stark white background. Even after your test at 12 DPO symptoms is negative, you should not be discouraged not down because a negative result at 12 DPO is not always accurate.

Some pregnancy tests do not detect HCG even their level is low, the tests are best at determining pregnancy from the date you missed your period. Some people first results show negative and after another test, it becomes positive. You can go to a hospital for more pregnancy tests to be carried out.


Symptoms are just there to give you the first signs that you are pregnant. There may not be a reason why you are not having symptoms, it be may because of your body.The only way to know if you are pregnant is by carrying out test.


Your 12 DPO is your best time for for early symptoms and positive pregnancy test if possible. If your test is negative, do not feel bad or down, go to the hospital and run more tests. You can also talk to your doctor if you have other questions. If your are a trying to conceive woman, you can make appointments to discuss about your reproductive health in general. We wish you all the best!

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