Not sure if im pregnant?😬

So like me and my bf had sex the 11th of this month (i was ovulating but i wasnt likely to get pregnant that day but i could still get pregnant) and he thinks the condom ripped so the next day i took plan b. And usually when i take plan b i get my period a week after. So then a week passes and i dont get my period. But then i had sex on the 18th again and again he thought the condom broke so we freaked out and i took plan b again on the 20th. And i still havent gotten my period so im freaking out🤦‍♀️. And before i had sex on the 18th i was in mexico and i got my period twice in December bc i took another plan b on the 15th of that month. And i have had mood swings, tenderness in my breast this week and i been stressing. So i dont know if i could be pregnant? Or if my cycle is really messed up over how many pills ive taken? Keep in mind im only 15 so im freaking out