Bleeding after intercourse at 8 weeks

So tmi but my husband and I had sex today and maybe 20 minutes later I went pee and noticed blood when I wiped. That was like 4 hours ago and I’m still bleeding. It’s sort of pink and it’s not real heavy but I did start cramping as well. I’m so scared. 😔 has anyone had this happen to them and baby be ok? I would really appreciate any feedback.