7 weeks GA, gestational sac present but no fetal pole.

Hi everyone! Last Friday nag-pacheck up ako at nag-patransv ultrasound and I found out na no fetal pole at 7 weeks. Kinabukasan nag-spotting ako, agad kong ininform OB ko, niresetahan nya ako ng uterine relaxant but until now may spotting pa din at medyo may buo buo na. I'm kinda worried kasi ang sabi ni OB kung 3 days at hindi pa tumigil yung spotting need ko na daw magpaadmit sa ospital. I'm thinking of getting a second opinion. Any advice and message will be greatly appreciated. Ang daming tumatakbo sa isip and I cannot think anymore since dalawa lang kami ng toddler ko sa house.