Hello. I had an ultrasound today & the gestational and yolk sac were there but no baby or fetal pole 

 Also I had bloodwork on Tuesday and if I remember right the HcG was 20,500 and I had some done today (Friday) and she said the numbers didn't "exactly" double which is why she ordered the ultra sound. Have any of y'all had an experience with either of these? If it was just one or the other I'd be okay I think but considering it's both I'm pretty worried 
                 
                
Re: 6 weeks 1 day, only yolk sac