I’m panicking, lost virginity a few weeks ago

Let’s say I could’ve been a bit smarter but please don’t judge me.

I lost my virginity on the 28th of last month to a guy who told me he had a vasectomy.

And tbh I don’t think he actually came because he respected I was freaking out a bit and told him to stop.

But idk what if somehow he had precum and lied to me... i know chances are low but it’s till there.

The app says I was supposed to get my period already.

I’m not sure if maybe it’s just because of the fact I lost my virginity so things in there are like ‘figuring it out’ but I’m so scared of being pregnant because I can’t afford a baby nor I want to be a mother...

Please please don’t judge I’m scared

If I took a pregnancy test would it be accurate in this time?