Thanks for the advice ladies
Some of the medication that you are probably taking might make you feel constipated and some may have as a side effect gas! That can be an option too.
It could be a couple of things. While your pregnant your digestion slows down, so it can take longer to process food that can lead to discomfort. Your body is also preparing for a growing baby so it's trying to stretch muscles that haven't been used before, or not very often.