5 weeks - uterus starting to adjust?

All day today I have been feeling, well, “movements”. Not like kicking or anything obviously since the baby is only the size of a poppyseed, but just like my uterus is adjusting or something but it feels like if I were to be poking my belly but on the inside (???) Has anyone else ever felt their uterus adjusting and pressure in their ovaries in very early pregnancy?

I don’t know what else to compare to lol. It feels like bubbles going off in my uterus almost, like little popping feelings and light pressure mixed with gas cramps 🤷🏻‍♀️ I am new to all this