Any guidance on missed period?

Alyssa

I’m 10 days late as of now and I had sex on 12/16/18 and I had very light blood when I wiped on Jan 2 and a couple days before that. I have taken two pregnancy test one on Jan 10 and another one a couple days later. Those were both negative. I’ve had a little cramping and I’ve felt nauseous but I’m around someone with the flu. If anyone has any guidance or advice please let me know.