I had unprotected sex with my partner on the 19th of sep. but we're sure he did not finish inside of me. Now a week later I have what seems like my period (I have always had irregular periods) but according to my app tracker, my period has come 2 weeks earlier. (not due until the 15th oct) I'm also experiencing slightly tender and enlarged breasts and an upset stomach and runny no.2 (which i sometimes experience on my period) Could i be
Pregnant?