I know that the birth control pill is supposed to make your body think it's pregnant, but does that include a firmer lower abdomin? Last time i was pregnant my lower abdomin became harder where the uterus is, I am on birth control and always paranoid it's not going to work!! I've been having some syptoms of pregnancy that could very well just be effects from the pill or signs that my period is coming. I am on the last week of pills and I should be getting my period by saturday. IF ovulation had taken place it would have been last weekend, and i did have a lot of intercourse over that weekend. I don't usually notice a harder lower abdomin, I've only been on these pills for 3 months now. I've also been experiencing frequent urination which seems to be clearer than usual but i haven't been drinking more than i usually do, my breasts seem a little more senstive than usual but the blue viens in them are more noticable and my face hasn't cleared up completely from my last period (it usually does). I had my wisdom teeth removed two days ago and I am taking tylenol 3 and amoxicillin antibiotics, but these syptoms appeared before I started taking these medications. If anyone could let me know what they think of all this that would be appreciated! thanks!