How do u buy maternity jeans

want to get a maternity jeans online. my pre pregnancy size is 7, so how do u select your size, I mean are these enough stretchy to fit through out pregnancy.
website shows sizes from 6 to 18 and doesn't show any measurement or any details.

Im no expert but I would buy one size up just to allow for when your hips expand

I need to go up a size but that wasn't until the last 8weeks or so.
(I purchased mine from Jeans West... So so so comfy and trendy plus they were two pairs for $100 which is awesome!)

I didn't have to go up a size at all, just used the little expander belt from bigw.

I do however have the curvy hips from DD and was a size 12 before anyway.

Can you buy 1 size up and see how they fit now and whether you think they will expand? Does the online shop offer returns?

I'd probably go to an actual shop and try some on first just to gauge how they'll go

Bought mine from the us, as not available here. I am normally a 29 inch waist but i bought 30, and they were fine! Can always buy/sell on ebay if you make a mistake!

baught my size from bigW/kmart. witht the strechy band thingys and where fine with them

I went up a size. I used their measurements to work out what size to buy and called rhrm to make sure i had it right. I bought some online after an article recommended them. Google Mamaway. They were about $120 with free delivery but I'm wearing them almost everyday and they are fab. They are the over the belly kind with a tie that can be adjusted too. I think I'll be wearing them after birth too!