sunshineandbiscuits how have you been managing without maternity clothes this far?! I understand tops are easier but I haven't been able to do regular trousers and jeans up for weeks and weeks now!
I spent approx 100 in H&M on 1 jeans, 2 trousers, 1 denim skirt, tights, lounge pants/which double as PJ's, and about 3 tops. Plus a few basic long sleeved tops from Gap. I also have a few of the ruched tops from Isabella Oliver...a little more expensive but definitely worth it, I love them and they're very flattering. One note about Isabella Oliver sizing though...I took my friends advice and sized down slightly. I'm a 10-12 usually and their size 1 tops fit me and my bump perfectly. I've been mixing those with bits and pieces from my pre-pregnancy wardrobe (loads of things from Hush like their long length vest tops, jumper dresses and henley dresses), various cardigans etc.
Personally i'd mix and match between cheaper everyday basics and a few better quality things which have definitely been way more flattering in my experience (Isabella Oliver, Seraphine etc)
Verbaudet do some good tops and dresses which are specifically designed for before and after, i.e they have openings/access for breastfeeding if you're planning to do that.