I've been constipated for 30 weeks (also 30wks pregnant), and suddenly I can poop again!
I'm so very happy 
My friend (helpfully) said this happened her in the days leading up to labour as it's the body's way of clearing out and preparing!
I hope not - it's too early! I'm not due until 4th May and she's really taken the shine off being able to "go" again with no hassle 
Do you have any experience of this?