I had unprotected sex 13 days ago and 2 days after I had more unprotected sex and then a few days after that aswell , now I have been peering every lik 20 mins iv very bad cramps its like I'm gettin my period but I'm not due until lik the 28th of November , iv headaches nausea boobs aren't too bad but I'm just wondering is it possible that I'm pregnant already and feeling symptoms now or wat ? Any help would be appeiciated thanks !