Hi ellamacy123, as the mom of 2 year old triplets, I can imagine that you might be under a lot of stress. Did you have this problem before becoming pregnant, or is it something that has recently developed? How is your diet? Do you get adequate sleep? (Certainly understandable if you don't!).
The discomfort you are experiencing following a BM is unusual, at least in my experience, usually it's the other way around. When you say your BM is not an easy one, do you think it's because the stool is hard and dried out?
Do you have an enema bag, and if so, do you have a stomach ache after taking a cleansing enema?
Without any other information, my instincts would be that stress and eating habits would be the first things I would suspect.