Had unprotected sex during ovulation. took morning after pill. can i still be pregnant?

Yes: If you take Plan B within 72 hours after you've had unprotected sex, Plan B one-step can reduce the risk of pregnancy by up to 89%. If you take Plan B one-step within 24 hours, it is about 95% effective. So its still possible to be pregnant as Plan B is not 100% effective. Make sure to use birth control on a regular basis to prevent pregnancy.