First ultrasound at 7w1d, measuring small. HR 113bpm.

I went for my first ultrasound today and baby was measuring a few days behind. 6w2d and only 5.28mm. The heartbeat was 113. This is an IVF pregnancy, so the dates are quite accurate. This is my third pregnancy, both previous pregnancies ended before week 7 and never got to see a heartbeat before. My feelings are all over the place, but still can’t enjoy it because of the measures and slow heartbeat for my gestational age. Any successful stories with similar numbers? I have to go back for a follow up in 1.5 weeks. Thank you for sharing!