ovulation

hello so i ovulated last week so the app said but i was using monistat & i didnt have any ovulation symptoms but the last day of my ovulation supposely i had had unprotected sex didn't take plan b because i dont like the effects but when i went to look on my app which is this glow app in my notifications it said my ovulation window ended that day i had sex but i'm suppose to get my period next week on the 4th so could i be pregnant?