Cramps

Im very confused because i got my period this month already it started the 3rd and ended on the 5th the day i had unprotected sex my ex cum inside me and we ended up having sex again on the 24th of this month he came inside of me again now im crampin the apps says i get my period in 3 days but i already got it thats not normal because im not taking birth control on anything and i been sleepin more lately i know this is too soon can i be pregnant already???