Please help im so confused????

so i had my period november 27th until december 2nd. it went away and then i had heavy bleeding for 3-4ish days. i had sex on the 8th. is it possible to get pregnant from sex on the 8tj? idk if the bleeding for 4 days was my period or not but it was really heavy. i think it was hormonal bc i got off birth control in october. I would just really like to know if it’s possible for me to still end up pregnant because my cycles have been really bad and I haven’t been able to pinpoint in the ovulation… online says sperm COULD live up to 7 days. so could i have gotten pregnant on the 14th? i’m cramping today pretty mildly. also having clear and VERY light pink discharge. no bleeding though. not enough discharge to where i need a pad though. Before I had the heavy bleeding the abs that I was supposed to get my period on Christmas, but after I put the bleeding in, it said I’m not supposed to get my period until January 4. so now i don’t know when to test either for pregnancy. app says i’m ovulating today but i took at home test and it was negative so the cramping isn’t ovulation.