Oh my, the things we fret about !!! As if we did not have enough on our plates already.
I carried seven babies to term ( more or less, some were late, some were early)
They all were different in the womb. One ran circles in there..one would brace his feet on my ribs and push...( he was long baby , 23 1/2 inches and I am only 5'3") one got hiccups every single night as soon as I lay down to sleep, some were so quiet I would push them around to make sure they would move.
They are simply very different. They can seem to reflect their nature. There are quiet placid children, and there are cocicky babies, hyper active ones...ect ect and we , the mothers, feel this in the womb. A quiet womb baby is a good thing. Your little girl should be a sweet, quiet baby, a joy to your family.
If your checkups are good, baby gaining weight, you not gaining weight LOL...heart sounds are good, dont worry yourself honey.
I am sure everything is fine and your baby is too.
Best wishes and God bless
Grandmother Lowell