what was that?

Sorry for being a post whore buuuuut....
I was just lying down after having a bit of a teary cos DH stole my cold cola for his bourbon lol
The cat came and lay on my tummy and I heard a weird noise and thought it was the cat but it wasnt it was my stomach!
For 20 minutes it did this weird noise.
With each breath in, each breath out and even holding my breath it was like the sound of a newborn animal grunting but it was definitely my stomach....it was almost a squeak.
Every 2 seconds!

I've heard somewhere that you can sometimes hear babies on the inside. Maybe the baby is practicing using its vocal cords!