OPK Question

Denise • I am 29 years old, married, and TTC. Have been trying for 2 years without success. We are hopefully getting ready to make a huge move to be closer to my husbands family. Looking for new friends
I tracked my ovulation using OPK this month, but I never got a surge. Going on day 5 of having sore breasts and now nausea has started happening too. Could I still have ovulated and could these be early pregnancy symptoms? AF due 9/25. Thanks in advance!!