Clomid and OPK

Amanda 🐼 • With my husband for 25 years, married 15 💍 Postpartum/Newborn RN 💉 Addison Sarah born 1/1/16 🎀 Skylar Melina born 12/2/23 🩷
My RE told me I won't have to do OPK bc they're monitoring me so closely with ultrasounds and bloods. Had my CD10 check this morning. They said I was progressing slowly and to come back Thursday to possibly start trigger injection. I asked if I could do friday bc I'm off from work. She said BD Thursday and come back Friday and 'hope we don't miss it'.
Well today I took an OPK on a whim. It's almost positive!!! Is this normal?? I usually don't ovulate until CD18-22. I'm freaking out now!!!