Nooooo! in Fertility Charts and Other Reproductive Stuff

I’m on CD 12. The second day of my fertile window. I got a really dark OPK that looks positive.
The problem? I’ve been throwing up/having diarrhea since 4:00 this morning. SO I doubt either one of us will want to have sex. And even if I did (I’m starting to feel better, but still feel pretty bad – I haven’t eaten anything/didn’t get much sleep/my head hurts), I doubt he will want to.
I’m pretty annoyed. I am not really having any egg white CF either so far this cycle (it’s in very small amounts if I do), which is making me feel anxious. I have been taking Mucinex and it doesn’t seem to be doing much. I do have wet sensation, but… I don’t know. Not much CF at all. I haven’t been checking cervical position because I keep forgetting that I do want to check that. Yesterday it wasn’t high/soft/open. Today so far when I felt, it wasn’t either. I’m hoping for one more day of a positive opk, at least. Gah.