5weeks 4 days !! & scared 😳

I had a miscarriage back in June , with that pregnancy at 4 weeks I had spotting that turned into a miscarriage. I also would bleed after sex , this time around I haven't bled after sex and I've been doing everything pretty much normal slowed down workouts but still never any spotting until last night . When I went to the shower there was one dime size drop of dried blood on my underwear ,When I wiped barely anything but still I could see faint pink and then again today there was this . I called my ob and she's not worried but I am ? Any thoughts ?