I'm looking to order a pair of fabric ankle boots from The Art Company but not sure which size to get. About 2 years ago, I ordered a pair of sandals from there in size 36 (3.5) which fit perfectly. However, in general, I buy my boots in a size 37 (4), especially if boots/shoes are laced, which these are (will wear socks with them). I also have to say I'm pregnant so my feet might be a bit swollen over the summer. Any wisdom? I wish I could buy these in store and try them in. Returning is going to be expensive I think as they have to go back to Spain. Tia!