Help please I need answers!!!

Heaven

Today I’m 36+6 tomorrow I’ll be 37 weeks 😍can’t wait only issue is I had sex for the first time since my whole pregnancy a few days ago and started bleeding but it’s only when I touch the part that tears for women during labor with tissue it’s very light like I mean only dots but still!!!!! I had my doctors appointment and she checked the baby’s heartbeat it was 140 which is great and she didn’t looked concerned she just told me I could go to labor at any moment so now I need help .... was it the sex? Do I have a tear there? Is labor about to start?