8 week scan vs 6 week scan

Ebony • 25 year old married mum of a beautiful 8yr old. Due with 2nd baby July 15 2021

I’m exactly 8 weeks today and had my second ultrasound .. first ultrasound the baby only had a HR of 95 at 6 weeks and they were worried so had my second scan today and baby is healthy with HR of 165 ! Baby is growing perfectly! All that worry for nothing 🤣