Missed period but negative tests

Ma

Hello, gals!

I hope I’m posting this in the correct group, it’s my first post, and I don’t want to mess up!

So, my husband and I haven’t been TTC for very long (only about 4 months). Prior to that I was on birth control for 4 1/2 years. I usually have a pretty regular period, but this month it hasn’t shown up yet but ever pregnancy test I take it negative. I know some people it takes a while for the hgc to be strong enough to test but good ol fashion google seems like it’s unlikely I’m pregnant. Anyone have any experience with this? I was sick recently so that could be it but you know how we all are, lol! We get our hopes up!

Any advice?

Thanks in advance!