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How likely is it to become pregnant while breastfeeding full time, four weeks after having a baby?

I have a four week old and sex once, I'm breastfeeding full time, my baby even eats three times in the night as well. could I be pregnant. It was a dumb, and I know we were not suppose to do that.
It is difficult to answer this kind of question with any certainty. Studies that have been done on this suggest that breast feeding can be a method of contraception if you are less than six months out from your pregnancy, you are breastfeeding exclusively (i.e. not providing food or other liquid to the infant), and if you are not having menstrual periods. Under these circumstances there can actually be 98% protection from pregnancy. However, if any of these conditions are not met there is a very high likelihood of getting pregnant, so going forward it is not a good idea to rely on this. When you go see your OB/GYN doctor for your post-partum visit I would strongly recommend you discuss this issue and what your options are. Many women will either resume birth control or even get an IUD at this time post-partum, especially since the further out from your pregnancy you are the less you will get protection from your breast feeding. Most OB/GYNs will discuss this routinely at the six week post-partum visit but given that this issue has already come up you should make sure you talk about it. In the meantime it is a good idea to avoid unprotected intercourse, and condoms are always a safe option.
This answer is for general informational purposes only and is not a substitute for professional medical advice.
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