Me and my boyfriend had unprotected sex on Sunday April 6th during the 2nd day of my period. 2 days after we had sex my period ended. He didn't ejactulate in me but I began to worry about possible precum so after school Monday April 7th he got me Plan B. It was about 20 to 24 hours after unprotected sex. I had nausea select days over the past couple weeks. I started spotting Monday April 21st through 23rd. My period is due May 3rd and I stopped spotting April 24th. I'm still a bit stressed about it so an assuring answer would be great.