You are right. With my first she had them a lot. But if I remember right they are a little father apart since baby has such a fast heart beat being so small. I'd feel pretty bad if my baby had the hiccups as fast as their heart beat..
I've heard that the babies hiccups feel Luke a heart beat.. maybe that's wat it was:)
I'm going to say no so if I'm wrong someone please correct me. Good question.. But I would honestly say that's your own beat. Not sure why feel it there but I have felt that too.. Even before pregnant. And I'll get that heart beating feeling all over my body at times.. But the babies heart is so small