OPK Question

Denise • I am 32 years old, married, and have been ttc for 5 years. Looking for new friends and support.
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!!