Generally, you should buy maternity clothes in your pre-pregnancy size. As maternity clothing provides extra room around the belly and bust, it gives you the comfort you need for your changing body. If you're in between sizes or are still unsure of what size to buy, consult our maternity wear sizing chart. Take measurements around the fullest part of your bust, your hips (under your bump), and your bump circumference, and compare these numbers to the sizing chart to find your ideal fit.
ThredUp is an online consignment store, but if you do not mind purchasing pre-worn items, then this can be an excellent destination for finding affordable maternity apparel. ThredUp is actually the first place I purchased a couple of maternity items from because I could not resist the low prices. They currently have more than 3,000 maternity items listed for sale, and all are a fraction of their original retail prices.
I've been here several times over the past few months. The staff has always been very friendly and helpful. The change rooms are large, and there is a big, clean bathroom available in the store (so convenient!) The selection tends to be more comfortable/ casual attire, with far fewer options for more formal events. But I found that the online site seemed to have some additional options that I didn't notice in store. Overall, good quality, comfortable maternity wear for a reasonable price and excellent in-store customer service.
Ok so I HATE maternity clothes... or I should say hated... I bought my first pair of maternity jeans yesterday from primark of all places and I am literally in love! They are still nice and skinny and fitted but so comfy around my bump - check out my maternity video on what I purchased here; https://www.youtube.com/watch?v=r3bLjGSHMZE&index=3&list=UU-DxGKz7B0xh_zSDzgnL2cw