Worried about Ectopic Pregnancy

Hi,

I’m a first time mum at 4 weeks. I have seen a lot of posts and stories here about ectopic pregnancy. And it makes me worry about it.

So far, I am okay, just very very mild cramping (probably just in my head too).

I got my BFP in between 3-4 weeks.

Just wondering, with ectopic pregnancy, is it common to detect the pregnancy early? Or it usually after the missed period.

I am trying to rule it out in my head. 😔

Thanks!!