Black tie event and breastfeeding boobs! What to do

[Marie0001]

I'm going to a black tie event in a few weeks with my husband and my in laws will kindly baby sit our baby. I'm excited as it will be our first event in a long time!
A first time mum and exclusively breast feed.

I'm worried about leaking in my lovely silk dress and my boobs filling up too much as I will be away for 14 hours and baby feeds around every 2.5/3
I already have a pump but it's a plug in and too big to bring...
do I need to buy a wearable pump for this occasion so I don't get leakages - and then would I pump in a public loo!? And discard the milk? With my dress a wearable pump I do not think it would not be suitable as it would be very noticeable (it's silk and a v neck!)

Any seasoned breast feeders with advice would be amazing
Thank you!
Xx

[CadyEastman]

Have you been yet @Marie0001?

[Theedgeoftheabyss]

Questions:
How old is baby?
Does baby take a bottle?
Has baby been away from you before?