I'm 27 weeks and just the last 20 minutes been experiencing front cramps and back cramps with belly…

Most likely but I would call your midwife and just see if she wants to observe you at all :) x

I really don't want to be a nuisance @cheznileigh it just panicked me a bit x

No such thing as being a nuisance when you're pregnant silly :) if it's regular I would give her a call, say to her you think it's Braxton hicks but you just wanted to check :) x