Can Birth Control Pills affect Pregnancy or not?

Can birth control pills affect pregnancy when you are ready for a baby?

When most of the women are not ready for pregnancy, they tend to use hormonal birth control for getting the best results. However, many of them begin to think about whether their fertility can be affected by the birth control pills which they have used over the years. The good thing is that we do not have any proof that using this bill is going to affect your fertility in the long run.

In the following paragraphs, we have mentioned whether birth control pills will be able to affect pregnancy when you are ready for a baby.

What are birth control pills?

These are actually a type of medication with hormones. They are usually available in a pack and one has to use one pill every single day. In case you take them on time they are going to be risk-free, effective as well as affordable. Apart from preventing your pregnancy, these pills have other benefits as well.

How pregnancy can be prevented by birth control pills?

The pills are going to work by preventing the sperm from draining an egg (this process is known as fertilization). These pills contain hormones that help to stop ovulation. This indicates that there will be no egg close to the sperm for fertilization and therefore pregnancy will not happen.

The hormones present in the pill will help to thicken the mucus present within the cervix. The sperm will be blocked by the thicker cervical mucus such that it will not be possible for it to reach an egg – it will be actually a type of security guard.

What might happen in case you take the pills accidentally while you are pregnant?

The majority of the females out there question whether their pregnancy will be affected by the consumption of birth-control pills. It has been indicated by studies that the developing fetus might not be adversely affected in case the mother takes birth-control pills during the initial weeks of pregnancy. 

Nevertheless, there are several questions which the majority of the females will ask about consuming the pills while they’re pregnant. We have answered a few of those questions in the subsequent paragraphs.

1. Is there any possibility of a birth defect?

There are several women who become pregnant all of a sudden while consuming birth control pills and they might be concerned about the fact that their babies might be born with birth defects. However, we do not have any scientific evidence depicting that using birth control pills during early pregnancy can result in enhanced possibilities of birth defects in the baby.

2. Is there any possibility of a miscarriage?

Can miscarriage be caused by taking the pills during pregnancy? This is another possible concern of females who might experience pregnancy which they have not planned for. However, we do not have any statistical information which will be able to establish a link between these 2 aspects.

Following the implanting of the fertilized egg on its own, it will not be affected by the birth control pills whatsoever. This is because the pills contain hormones that are intended to make the cervical mucus thick for preventing the sperm from getting into the uterus with the intention of preventing ovulation.

Once implantation has already taken place none of these things are going to happen.

There is one more myth regarding pregnancy and birth control pills which indicates that an immediate miscarriage can be caused by the consumption of an emergency contraceptive pill. Nevertheless, this is not at all true. The pins will not have any effect on the system since implantation has already taken place.

3. Is there any chance for Ectopic Pregnancy to happen?

It has been shown by evidence that consuming a progestin-only contraceptive pill (also known as minipill) while the mother is pregnant might enhance the chances of ectopic pregnancy to take place in some cases (in which case the fertilized egg is going to develop outside the uterus).

4. Is it possible to have low birth weight as well as preterm delivery?

It has been shown by some studies that females who become pregnant while consuming contraceptive pills might be experiencing low birth weight, preterm labor, as well as several congenital abnormalities of the urinary tract.

However, it is important to comprehend here that not enough research has been made in this field until now. Therefore it will be unfair to expose the newborn infant and the mother to any possible danger as such.

Is there any possibility for the pregnancy test to work in case you are on the pill?

Yes, definitely. It is a fact that there is no contraceptive method which is absolutely effective and therefore it will be advisable to perform a pregnancy test in case you are of the notion that you might have conceived.

The contraceptive pills make use of hormonal methods of contraception which consist of the hormones progestogen and estrogen. They are going to function by changing the hormonal balance of the woman.

However, the outcome of a pregnancy test will not be affected by these hormones since they are not employed for measuring whether you are pregnant or not.

How pregnancy tests are going to function?

It is a fact that a pregnancy test will only react to HCG (the pregnancy hormone).

However, in case you happen to be pregnant, this particular hormone is not going to be present in your blood or urine until approximately 14 days following ovulation which will be approximately the same time you’re going to get your normal period.

You will not be able to see any positive outcome in your pregnancy test until this time has elapsed.

A specific level of this hormone will be required to be present in urine tests so as to indicate a positive outcome. Blood tests will be able to identify a smaller amount of this hormone and therefore they happen to be more sensitive which implies that it will be possible to pick up pregnancies earlier typically one week after ovulation.

Although you might have your blood test at the GP surgery, it will be advisable for you to take a urine test at your home prior to an appointment.

At times HCG is employed in the treatment of fertility which might lead to a false-positive outcome (where the outcome is actually negative in spite of being shown as positive). It will be advisable for you to wait for 2 weeks after having the treatment prior to taking a pregnancy examination.

In case you obtain a negative outcome after taking the test, it might indicate several things.

First of all, it might indicate that you have not conceived or the test has been taken by you quite early. It is easy to take a test are early since it might be difficult to figure out the precise day when you started ovulating.

In case you believe that the case has been taken too early, it will be recommended for you to wait for several days prior to going for a second test or you can also take the advice of your physician and possibly go for a blood test.

You might have got negative results as well as since the test has not been timed correctly. For example, in case a sample of urine has been collected by you for testing and the test has not been conducted within 10 minutes, then the result will be affected by this. It will be imperative to go through the instructions prior to doing the test.

Drinking plenty of fluid prior to a test can also make your urine become diluted and this can impact the HCG levels in the sample. In case you have any doubts regarding the result of the pregnancy test, do not hesitate to come in touch with your GP.


It is not unusual to have an unexpected pregnancy by taking birth control pills. In case you think that you have become pregnant, conduct a pregnancy test at your home for confirming it. Stop consuming the contraceptive pills immediately in case you have become pregnant. Also, go through the product labeling meticulously prior to purchasing the pills. In any case, always consult with your doctor for his guidance before taking the pills.

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