how soon can Braxton hicks happen jw

whenever really, I've heard people get them as soon as 12 weeks. Mine started at 17 weeks with both babies.

I'm 26 weeks but I am not sure what they feel like or anything

They can start as early as 6 weeks even if you can't feel them, I didn't start feeling mine until recently at 30 weeks and some women never feel them

are they a bad thing or just random that's supposed to happen

I got mine at 21 weeks

I started getting mine st 10 weeks