Hi, I've been feeling pretty weird lately but I don't know if it's in my head or not. I am feeling pressure in my lower abdomen, been feeling pretty gassy and when I was laying on my stomach, I felt a big pulse in my lower abdomen and it freaked me out. My breasts have been kind of sore but not to the point where it hurts to the touch. I had my period on the 17th of June, it was heavy!! I have not had intercourse since the 18th of June. I am on birth control pills as well. Could I have gotten pregnant while on my period? I've never missed a pill. I took antibiotics back in May but I waited a week after stoping them to have sex again. So my period was a validation that I'm not pregnant right? Then why am I feeling like this?