Light light brown spotting

Rynna

Husband got home from 7 months on the road for 9 days before he leaves again. (I visit him as much as I can.) so needless to say we’ve been at it. I’ve noticed some super super light brown spotting, I’m assuming it’s from having sex so much. I get an ultrasound on Wednesday. I’m 12 weeks today and suffered a miscarriage in July so I’m a bit worried. Already called my ob and left a message just looking for some positive advice 😬