Congratulations on your pregnancy
I had a natural pregnancy but was also still very bloated in the early days to the point where my jeans etc. were uncomfortable. I invested in a belly band and still use it now - would thoroughly recommend one. I got mine new off e-bay for about £5.
It's basically a stretchy tube of fabric that you can wear over the top of your jeans / trousers so you don't have to do them up, soooo much more comfortable. When you put a top on, it just looks like you're wearing a vest top underneath, or if the top is long enough you don't even see. I found it really nice in the colder weather too as it kept my bump nice and warm.
For the sake of a fiver, it saves you buying lots of new jeans / trousers early on!
Wishing you a healthy pregnancy.
Laura xx