Ewemoo saw your post and couldn't not reply.
The first day I had to do the nursery run on my own with DS1 and DTS (22 months between them) I was terrified but it was ok. And each time it got easier. I was bottle feeding (not sure if you are bottle or breastfeeding), which may have made it easier, plus DS1 is only at nursery so therefore doesn't have to be there at a set time.
They were feeding every 3 hours at first (sometimes even more often) and I was feeding them one after the other so it took a fairly long time, so I would basically try to get out of the house as soon as I had fed the second one. Not sure how you work this if you have to be at school at, say, 9am on the dot though. How long does school run take? Is it walking or in a car?
As for bathing, I quickly discovered mine could survive on 2 baths a week (still do at 12 months, meaning I am only actually alone for one bathtime as DH here at weekend). DS1 used to have a bath every day, and I was determined not to change his routine when DTs were born so somehow I would manage to bath him, feed them all, and get them into bed on my own (I had every Mon, Tues and Thurs with DH home after all three in bed, and on Wed and Fri he was home 6:40pm). DS1 now only has 2 or 3 baths a week and thankfully they are finally all able to have a bath together on a Sunday which makes things easier.
Are you trying to bath them separately or together? I did mine separately at first as was too scared to do them together but once you get used to both together it is a lot easier and less time consuming. Do you have those newborn bath supports? I have two going spare I can send you if you dont (FFP). I would put 2 changing mats on bathroom floor with their towels on, and bath both at same time, then get them out and dry them (harder one they can flip over and try to escape). This only works if bathroom floor big enough mind you (ours is only just, but old bathroom before we moved house would have been impossible).
As for the swimming, I am hoping that you "only" have to be there to watch DD and not get in with her... Is DH not around on a Saturday to help?
As the very wise FG says, go easy on yourself and do not expect everything to be perfect. If either of the DTs had pooed while we were on way to nursery I would have waited until we were home. I never got them changed out of the night clothes before leaving house (still dont always in winter!) as they lived in sleepsuits anyway and were always in snowsuits (winter babies like yours). It does not matter what they look like (mine were pukers, and often would puke over themselves before leaving the house, would just wipe them up a bit and shove on their snowsuits ).
If you can get any help at all, from anyone, do! I had a post natal doula for the first 3 months and she made a big difference. She was never there for the nursery run but knowing she was coming in for a few hours later on made me keep it together (for the most part).
Sorry, am rambling. Just wanted you to know I feel your pain. I think although your DD Is older so therefore you wont have the pushchair issues I had (DS1 still going in pushchair most of the time when DTs were born as he was not yet 2), he was younger and maybe more tolerant of the new babies than a 4 year old might be???
Just seen your last message was 5 days ago and swimming lesson has already happened. Hope it went well.
And big congrats on your twins, and it is fab they are doing ok and out of SCBU!