ok so i’m 18 years old and i need some advice. on december 29 i had sex and the condom tore so i took a plan b 30 minutes later. then my period can on january 6-12. i had then had sex again on january 25 with a condom but it didn’t tear. on january 30 i started my period and it’s february 9 and it still didn’t end. Can i be pregnant or can the plan b mess up my cycle like that?