2 weeks late before BFP?

Can someone be two weeks late before they get their BFP? I'm 11 days late now and I took a test two days ago and the line was there right away but then shortly disappeared. I'm really confused about it all now. Or is it possible for some women to never show positive on a pee test but only by blood? 

Glow Resources

Let’s Glow

Glow is here for you on your path to pregnancy

Glow helps you navigate your fertility journey with smart tools, personalized insights, and guidance from medical experts who understand what matters most.

25+ million

Users

4.8 stars

200k+ app ratings

20+

Medical advisors