period + pregnant?

I know this sounds stupid but anxiety is getting the best of me… and so is google.

The last time I had sex was in may (pullout) and I got my period a week after. I’ve gotten my period regularly since; the full 7 days and heavy to moderate bleeding.

This month I was two days late & my period has been super light. It’s day four and I’m just spotting. I’ve never had a menstrual cycle so light in my life.

I am under stress + emotional issues with the family so maybe that’s the culprit?