outfit advice for my constantly changing post baby body?

[mac12]

We are going to a stylish wedding and i have nothing to wear. I want to buy something new (but not expensive as am on tight budget) but i have no idea what would suit my current body shape - I'm about ten pounds over my usual size 8-10.
i just don't feel like me at the moment (post-baby and other stresses) and really feel like I need the boost of looking and feeling good at this wedding so my challenge to the S&B fashionistas is what type of outfit would suit the following criteria:

• must be practical for travelling with three young children
• must allow access for breast-feeding (i don't want to buy special nnursing dress as i'm hoping to wean the bottle refusenik off the boob in the coming months..but that's a whole other thread)
• i have huge boobs at the moment
• am 5 foot 4 and still have a post baby tum that I'm quite self-conscious about
• i would prefer some arm coverage

Any suggestions?

I am rubbish at finding specific dresses but I went to a couple of weddings when bf and wore:

• a dress with buttons in the centre at the top, so I could undo it
• a halterneck dress I could undo for boob access.

Obviously neither were great for subtlety, so in both cases I had a pashmina to cover me up so I wasn't waving my norks to the whole room.

The only other dresses I've found that really work for bf are wrap dresses / jersey dresses, which tend not to be so dressy on the whole. Would something like this be smart enough? Looks like the rouching at the waist would help disguise post-pregnancy tum too. I think sleeves + bf friendly will be tricky for anything other than a jersey dress.

Thank you for that Pootlebug. Lovely dress, out of my current budget, but definitely some style inspiration - i think you may be right about the rouching around the tum. It's very tempting to go for baggy tunics to cover up that problem area but I don't want to be accused of being pregnant again (this actually happened to me at work after my second child and I still inwardly cringe at the memory...)

Usually I have no problems with my wardrobe and have a very strong sense of what I like and what works on me but I just don't feel like "me" at the moment. I think I need a good haircut, some dance classes and some sleep to get my mojo back!