Hi all, I did <a href="https://glowing.com/glow-fertility-program">IVF</a> and went for my first scan at supposed 6 weeks 1 day based on transfer date.

Heartbeat was detected and my baby is measured 2mm in size, which turns out to be 5 weeks 4 days.

Is 2mm considered too small? And is it normal to be behind schedule considering it’s done via <a href="https://glowing.com/glow-fertility-program">IVF</a>？

If there is a heartbeat detected, does it mean I have nothing to worry about?