2x family weddings - can I get away with same outfit?

[BramblyHedge]

I have 3 family (same side) weddings this summer (thankfully I am bridesmaid at one so dress sorted). Would it be very bad form to get one outfit for the other two? If yes then anyone got any ideas for mix and match separates to keep down costs?

-5ft 2,
-sz 14/ hourglass (if that means big hips, big boobs, smaller waist)
-34f
-had baby six weeks ago so wobbly tummy
-don't like my broad shoulders or my knees
-breastfeeding
I usually go for burgundy,teal, purple, brown, small floral prints but wouldn't mind a change or something bolder/ colourful. Been looking at phase eight, hobbs, house of fraser website.
The 2nd wedding may be a bit cool and fashionable if that is important (I am not cool and fashionable)
thanks!

Oh - i prefer low neckline as anything high make my chest look massooove.

This is a lovely colour

This one from Phase Eight is actually quite green in real life (looks bland online)- it's nice- tried it today (I'm a 32E, 12/14 atm, 5'1")

Tried this one on and it's lovely, but not sure if it's too dark a colour?

None are really good for bfing though-- there is a really long thread on S&B for bf weddingy dresses... here it is - loads of dresses on there.