I am having mild cramps, but am not due for my period for another week. I am taking daily ovulation tests, but have been negative? Also nauseous

If not. Ovulating and not due for your period for a week it is low probability for pregnancy? Nausea is a tough one but try something for acid reflux. Are you sleeping well? Are you stressed? That may be contributing. It's sounds like you are worried and trying hard to get pregnant; it can take its toll. Gd luc.