Why could my boobs be hurting

💙💙💗Desiree💗💙💙 • Mommy of 4 blessings 🧑‍🤝‍🧑👧🤰

They started off a lil sore but now it's more I'm still 9 days away from my period and it's started since last week . I haven't had sex since Jan 7th so I know pregnancy the case. And I don't think I ovulated this month either since I never had a temp rise nor positive opk. What can make your breasts hurt before your period I don't always have breast tenderness only sometimes but I've Also had ovulation cramps a couple days ago but no positive opk? Does anyone know what it may be?