Anyone 37?

Dav
I'm 37, my cycle is regular 28 days. In March I had my cervical cancer screen, my cervix was clear of any infection and no cancer. The dr said I'm healthy. I am now 5 days late, I took 2 test on Saturday the cheap kind. Both negative. Has anyone my age or around my age been through anything like this? I can't help but think something is wrong with me.