Not very common but it happens

Very very rare.

This is the comment i read on the community :
The earliest I got a BFP with my previous pregnancies was at 8 weeks. it was something to do with the way my body metabolised HCG in my urine. In fact with one of my boys I needed bloods at 14 weeks to confirm I was pg... no HPT's had shown +!!!

Amanda, it happens. Typically it doesnt take that long for a positive test, but I have heard of women having very slow rising hcg at first and not being able to detect it until later. That said, Beaky is right. It is much more likely a faulty test.

No it’s just that some women’s body dont produce enough hcg to be detectable at first so they keep getting bfn until like 10 weeks of pregnancy

Cryptic pregnancy is very rare and there isn’t a lot of medical documentation surrounding it. Your more likely to encounter a faulty test.

Are you talking about a cryptic pregnancy?

I’ve read it on the internet in a community not sure about it’s name! But there’s a lot of super late bfp stories

There you go, low hcg^^^

False negative but its supposed to be positive? Hmmm. I know some woman who didnt get a positive until later in pregnancy but Idk why personally.

Some women don’t get high levels of hcg in their urine so hpt don’t show up positive

I’ve never heard of that. Where did you read it?