I'm in my last days of/after ovulation and i'm starting to feel nauseous & have no appetite should i be worried its been going on for a few days now?

I would say as long: As you do not have a fever and are not vomiting/getting dehydrated/losing weight, it will likely be transient. Symptoms of pregnancy usually start just before missing your period, kinda early. After ovulation there can be some release of blood into the pelvis causing nausea. The contraceptive pill prevents cysts that might rupture and unplanned pregnancy. Check test if u miss a period.Good luc.