So, I think I found the brand/style of maternity jeans that will work for me. They are super spendy, but even not pregnant I tend to wear the same pair of jeans everyday...so it'll be worth it to be comfortable. But I have a question about sizing.

I'm 16w right now, and my regular jeans are just starting to get uncomfortable to button. I thought I might as well switch to maternity right now to take full advantage of them (since I find a band or button extender uncomfortable). A lot of what I've read suggests sizing up, but if I go one size up they feel a little loose (not falling down loose, just a little bit like they could slip). They are super stretchy (J-brand with side panels), so I'm thinking I may be better off staying with my current size.

Any thoughts? Experiences?