Worried 1st time mom here

May nakaexperience po ba dito na 7weeks na pero gestational sac age is 5 weeks palang? No yolk no fetal, open cervix may bleeding. Pero may symptoms nmn po ako ng pregnancy. Worried lang po ako kasi sabi ng OB ko pag wala parin daw HB sa nxt tvs ko ay miscarriage na daw po..