Help! Ovulation early?

So my ovulation date is technically tomorrow. However I think I ovulated early because I had EWCM about 5-7 days ago. Yesterday I had mild cramping, no particular side, and on the way home from work, around 11pm, vomited twice. I didn’t feel sick - just sudden vomiting while driving - to where I had to pull over. This is too early for checking, correct? We’ve been TTC and not really monitoring too much since the end of March. Too early to check, correct?