Idk if my shrinking uterus is the cause of this but.....

I don't know if my shrinking uterus is the cause but.......I've been SUPER gassy!! Tomorrow my little lady will be two weeks and ever since I've had her I've been going number two like crazy...at least once or twice a day..very un normal for me...before I could go like a week without going number two. And also farting....omg!! My after I take my girdle off my tummy rumbles like crazy and then it begins...its getting so bad im grossing my husband out. And I can't help it. Idk if its because my uterus is shrinking and all the air is being flushd out..or if my girdle is causin it..or if it's because I'm pumping a little bit. But is it normal to be super super gassy after you have a baby??