This must be really hard, but you also need to see it from bride and grooms point of view. It's their day and if they don't want kids there then that is their choice - they shouldnt have to make exceptions as it may cause upset to other guests who were asked not to bring their kids. I am planning my wedding for next year and am excluding all babies and children under 18 from the wedding - if i included family children there would be 23 extra places, extra mouths to feed. I think also (as it certainly is in my case - bride and groom want their friends and family to enjoy the wedding and a bit of grown up time!) Can you not have your nanny travel with you and look after the kids in the hotel - that way you can enjoy the wedding and have a bit of time off but still come back to breast feed later? Or you could give this one a miss, let your hubby go and do his ushering thing and you get to spend some time with the kids by yourself?