Bump is moving in a way that can only be ...

[Louisex]

Described as silucking his thumb.

I can't really describe it but it's going up and down up and down in a rhythm of like sucking. Dies this make sence?

 

[FeistyMom]

Babies do practice sucking and breathing in the womb - your LO very well might be sucking a thumb right now~!

My LO doesn't seem to do that as much as my girls did, but he has been getting hiccups lately which is so odd too!

 

[Mazzy]

My LO has done this a few times...so darn cute. I thought he was sucking on his thumb, but could also be practice breathing.