Could I be pregnant

Hey everyone so I have regular periods and got off birth control in sept and was on it for a month.

Anyways on oct 31st I had sex with a pullout and condom and 3 weeks later I got my period on time I spotted during my fertile week but people said that was normal .

The period was heavy or filled pads lasted 5ish days. And then I did get stressed a bit and my period was 4ish days late in December but when it came it came heavy and then the next period (my most recent was 2 days early )??

I haven’t had sex since oct