Is this normal??

I'm not sure how to ask or know if it'll make since but my boyfriend & I had intercourse last night & he didn't pull out. I got dressed & as I walked to the restroom I felt the sperm come out & when I pulled my panties down I had very light blood on them. This happened a few days ago too but I had my period already and it only lasted three days. That's not normal for me. My period usually lasts about 7days. The previous month I also had my period for about three days or four.  should I go to my doctors or is it normal? 😖😅