Hi

I had a dating scan yesterday and it estimated 7 weeks. Heart rate was 127bpm. But this would mean I had a very strong pregnancy test confirmation (first response) at 3 weeks, which seems a bit early? Also based on some HCG blood tests a few weeks ago the doctors estimated I would be over 8 weeks for the scan. Does anyone know if this could just indicate high HCG or could there be development issues? It’s all so nerve-racking in the first trimester! Thanks for the help :)