Gestational sac sizes - normal?

[Tryagain92]

On 16th Feb had a scan as i got pregnant after miscarriage i was not sure how pregnant i was. They measured a very teeny tiny sac it was
2.9 x 1.4 mm

Had a scan yesterday and it measured
5.4 x 5 mm

Is that growth ok!? Got another scan on 8 march so have a long wait until then.

How many weeks are you by your calculations and How many weeks were you yesterday according to the scan? Was there a visible fetus or pole?

By my calculations i shouls be 5w3d but to them im about 4 weeks. No visable YS, HB or FP.

At 5 weeks you would see nothing on an ultrasound other than a very small sack, from about 6+2/3 potentially you can see a flicker of a heartbeat but some are not seen until 7+ weeks.

At 4 weeks (if you had a late implantation these dates could be correct) you wouldn't even see a yolk sack. The only thing you can do is wait it out, certainly by 8th of march you should see a HB which will be reassuring. Best not to worry yourself with measurements because at this early stage you cannot get an accurate reading off an ultrasound and if they're 0.5mm out it can mean the difference of a few days.

FX for you all will be well, I'm sure it will