Yesterday night I had sex with my boyfriend. I've only had sex about 4 times so I'm still kind of new to things, but I was wondering why last night there was a little blood?
Is this normal or could this be serious?

This can be a normal thing if pregnancy is happening.
With little details it is hard to tell type of bleeding.

Implantation Bleeding (http://www.babyhopes.com/articles/implantation-bleeding.html)

Its was very little bleeding, kind of pinkish. And its only there when I wiped from the front

? Is. Did he push hard the first night you had sex? And did you bleed?