They call it the "Amazon nightgown dress" and it's been making waves on Instagram since the beginning of the Summer, but as well as being the go-to boho holiday dress for influencers, the R. Vivimos Casual Bohemian Dress (£26) also makes an amazing maternity dress thanks to its relaxed fit and empire waist, which will accommodate a bump right up to birth. It comes in a whole host of different prints and colours. I'm up to three and counting.