Period and pregnancy

I had my period recently for 7 days which I usually only get for 2-3 days. After my period stopped I forgot to take the pill as I had my period for so long& anyways my partner and I had sex and he came inside. After i went to pee and wiped and there was blood, 3 days after my period. I then realise I ain’t on the pill. Now it’s Wednesday night and my period started spotting again yesterday and today. Could I possibly be pregnant? Thanks xx