Awe that's so cute!! This happens to me a lot and I always wondered what he was doing in there. I was just talking to my mom the other day about it. I never knew it was hiccups. That's so cute lol
Definitely hiccups which likely cause his whole body to move.
Sounds like hiccups! My lo gets them at least twice a day. So cute! And it is a healthy sign that your baby is doing well.
Yes the further along you get and the bigger he gets the stronger the heartbeat gets. I am currently 28 weeks +4 days and I can see my little mans heart beat when he moves up agains my stomach.