cm before bfp??

An
I'm on cd 26 and my cycles are typically every 28 days. Last month I went 30 days. My husband and I had unprotected sex and he **** in me several times (I had no idea we were "trying" 🙄 all him) before deploying. I've tested using the dollar general tests and Rexall 5 day early response and all have been negative. I've been sick since yesterday morning -- nauseous all day and I've had diarrhea. Cm is white, creamy and doesn't have a smell. What are my chances?? or could I just have gotten a stomach virus and af is around the corner.