Hello I need some advice, I had my period feb 19th -21st, march 2nd I had unprotected sex and I've feeling weird, my period has been a little crazy and I get it every 35-38 days since march 2nd I've feeling very tired sensitive to smells, and since yesterday march 7th I've been having cramps , could I be pregnant? Is it to early to tell? Anxiety is killing me any advice anyone?