Pregnant or late period?

it’s about to be that time of the month but the last time I had sex the condom had a little tear when it was over so all I’ve been thinking about is the bad , I’m not trying to get pregnant right now, I’m only 20 ..however I’m still receiving period symptoms such as migraines , sore breast and sleepiness , idk if I’m overreacting that my period might not come this month or I’m not sure , what do you guys think?