my boyfriend and I had sex 12 days ago I am on lutera birthcontrol pill I take it everyday perfectly on time and im not on antibiotics I also have never missed a pill. when we had sex my boyfriend used condoms and they never broke and I was on the pill..im suppose to get my period next week but I feel a hardness in my pelvic area but the rest of my belly is squishy is this a bone or mucles? please help