Hb flunctuate?

Slvelaz✨✨ • 👯‍♀️ 1 Ectopic 2 MC 🌈=11/04/19 🤰due10/01/21

Does the HB of the baby flunctuate depending on it's movement or were it's located or even by week? First on apt I was 7+4 HB 160 then again at 10w 188 n then then a follow up at 11+5 HB 160 n 12+5 HB 155?

They always say all is perfect but I always forget to ask y does it go up and down