I started getting mine st 10 weeks

I got mine at 21 weeks

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

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

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

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