I agree with what the previous posters have said. Definitely go and get checked, just in case something is starting. I lost some large blobs of mucous at 24 weeks. One week later DD arrived after 3 hours of mild crampy niggles that I dismissed as me being tired & overworked. There was no stopping it, I rocked up to hossy to get checked & I was fully dilated. I don't mean to scare you but at least if things are moving, like Sal suggests, they can get steroids on board for bub and try to delay labour.

I truly do hope it all settles down for you hun.