What's wrong with me??

So I ended my period last Thursday June 29th and then Tuesday I was bleeding again after my fiancé and I had protected sex. It wasn't rough or anything so I'm really confused. I thought maybe it was ovulation spotting but it's still occurring 4 days later. It's not as heavy as my usual period but definitely need to wear a liner. I have no history of cervical cancer in my family and I got the vaccine, no STDs, no infections. I have no pain or anything except for the bleeding. I ended my BC pills in December so I'd think my body has adjusted by now. Has this happened to anyone before??