I got my period!!!! But I'm very confused also

My period was 3 days late. Which usually it comes 2 days early and no horrible cramps usually before i get it i always do this is the second month now that it happens. But what confuses me is why I had horrible symptoms all last month and this month they were all like pregnancy symptoms. I never throw up and last month and this month i keep throwing up right after i ate or felt nauseous. I kept feeling dizzy, had headaches and won't stop using the bathroom back pain and sleep more and also cravings. I'm just confused. I know i can't be pregnant now cause i just got my period.

Edit: i did had unprotected sex January and last month.