HELP ME ! PLEASE WHAT COULD THiS BE ' PREGNANT or SOMETHING ELSE?

ok ' like 1/13/10 i had a miscarriage so let me tell you what happened in oct i came on the beginning and then the end of oct i came on aqain ' then didnt no more so jan i had a miscarraige ' so now it feb and i had w/ 2 quys ' ok like around 2/7/10 i had with my babyfathers and then i had with my ex on 2/17/10 they bothed used the pull out method and then i had with the ex on the 19th he didnt come in me but right after came he went right back in me ' then dumb me was scared to tell my bd i had with my ex i had with him on the 21st and 22nd and 23rd and 24th and 25th and 26th ' but look heres the thing on the 19 when i had sex with my ex i start bleeding the morning after and then it was heavy reallll heavy then the 21st it still was heavyyy but i had sex on my what i thought was period and then it stoped then started up then got real lite then liter and now no period and quesss what i stay on my period for like 7 days and they be heavy and i afraid im preqnant aqain cause this is what happened my last preqnancy i had two so called periods in one month what could it be i know i sound nasty and like a slut but the storys more complicated then it seems please help and not judge thanks for everybody who answers !!