My Period is Over. Why blood?

Hello everyone,

My perios was from the first day of April.and lasted until April 6, with light spotting flow on April 7. I had intercourse on April 7th as well. The guy had no problem with the blood, but it was more than it should have been. I also just had sex on Tuesday, April 12, but he did not come inside. Both times were unprotected. I did take a morning after pill for the April 7th. My period has been over since April 7th.but I noticed on Wednesday April 13, I had spotting, and then it's been a sort of medium flow. I have cramps. Is this normal to happen? I will get myself checked, but I don't want to freak out if it's nothing.