Gut feeling & maybe tmi

I have this feeling that I'm pregnant. I started birth control about 2 weeks ago and a few days after I started taking it I had unprotected sex and am pretty worried I'm going to get pregnant. Im already experiencing some bloating, cramps and diarrhea. Sorry if that's tmi, but I'm concerned and need some supportive advice on how I would go about telling my parents and the father. Anything helps, thank you in advance.