We have 4 sets of close friends getting married this year. Starting at the end of May and continuing to the end of September (this on in Brittany). I will be almost 20 weeks pregnant with DC 2 for the first wedding and 34 weeks for the last. All couples getting married know each other very well and guest lists for all weddings are pretty similar (except for family of course)
I am also severely style-disabled and live very rurally so never see anything stylish/fashionable whilst all the couples are trendy London folk (with large dual incomes). I will probably have to buy on-line , given our remoteness and since I won't be drinking and staying up late enjoying the party like everyone else I would at least like to look as brilliantly ravishing as possible for a pregnant woman 
My favourite maternity wear is by far Isabella Oliver and so far I quite like this