First Timer!! HELP!!!

Yeymi • Navy Wife⚓️ Mommy of a precious baby girl 👶🏼

So I have been trying to conceive for 3 months now, I have sex with my husband at least 5 days of the week.. and currently my period is late by 4 days. Took a test, BFN. So can this mean anything else? Like maybe I’m stressing that I’m not pregnant so I’m late. Or this is all in my head?? If someone can share similar stories I’d highly appreciate it! Thank you!