Lewdpencil here, did a little more with this! I decided, as suggested, to keep the fetus out of the anim, but I added a bit of belly squirm. What do you think? I'm not too sure, I want to work on the timing a bit more. Maybe split it into 3 animations, and then edit each together so the three "stages" have room to breathe.
Either way, thank you to everyone who gave their feedback, and I hope you all enjoy this small update!