When do I test?

Positive OKP on the 13th and 14th. So far I’ve been having cramps, twinges in my stomach and ovary, backaches, more horny than usual, headaches, extreme mood swings, etc. I feel a little nauseous now which started a few minutes ago along with the weird twinging feeling in my stomach and cramps. When should I test? I did today and it was negative.