my period started on the 2nd of july this year and ended on the 7th. I started birth control on the 24th and ive already ovulated before I even took them. My boyfriend and I had sex on the 30th and we made sure we wore a condom to be safe. My period was due to come on the 2nd of Aug this year but never came. Could it be because of the pills or am I pregnant? I'm really worried I am.