Talk to Gynecologist on First Pregnancy Transvaginal Scan

Aoa dear respected doctors on marham platform!

My Last menstrual period date was 4th January, and my period cycle is 28 days. This time i missed my period, i checked on pregnancy strip, it was positive on the day i missed my period. After that i went to doctor she Did hcg test which was 89 miu/ml. Doctor said that yes i am pregnani, but Because i went too early thats Why level is low. she asked me to Come back again in 4-5 days, after 4-5 days hcg level was rising well, it was 400+ miu/ml. so she said Its fine. Progesterone level was 13 so she prescribed duphaston. Now i am 5 weeks 5 days pregnant. today i went for my First TVS scan doctor prescribed it to check for location of pregnancy whether Its in uterus or not. after scan, she checked Report and asked me whether i had bleeding Recently or not Because she saw dark fluid type thing in uterus. Maybe Accumulation of blood. I want to ask is it fine? she asked me to Come 10 days later again for scan. I am a little bit scared. This i