As others have said, childcare vouchers must continue to be given when you are on stat pay and not taken out of stat/withdrawn. It's the law, so your employers would be breaking the law if they didn't do this. See here:
www.gov.uk/guidance/statutory-maternity-pay-employee-circumstances-that-affect-payment#non-cash-payments-and-contractual-benefits
In fact any contractual benefits must be continued to be provided which is why you accrue holiday when on leave. I've also got a rental car which I get through a work car please scheme, and pay about £230 a month for - this is counted as a benefit so when I'm on stat pay I don't need to pay for it - bonus!
DD will continue to go to nursery 3 days a week when DD2 comes - the nursery at the university is v oversubscribed and we wouldn't want to lose her place. I also selfishly know I couldn't cope with baby + toddler all week so will need the break! And I do want to keep her routine intact if possible. She'll also spend a day a week with her grandma, and then I'll have her Fridays with baby. At the moment me and DP alternate taking Fridays off but obvs when I'm on leave I'll just do it and DP can save his holiday.
Hope you're OK mrsben
sounds very stressful.
As for pelvic floors - I did basically none when pregnant with DD and had no problems afterwards with incontinence or any other weakness issues
which they say usually happen first few days after birth. But I've always had a really strong bladder so maybe I'm just lucky. I basically do my pelvic floors now only when I remember which is usually at yoga once/twice a week! Hoping my laziness doesn't come back to haunt me later 
Another member of CPC here, my digestive system is all over the place but I've always had digestive issues anyway and pregnancy definitely aggrivates it. Sleeping has been OK recently, DD slept in till 6.20 this morning which again is amazing for her. Think the gro clock might finally be working. I kept waking in the night really needing the loo but couldn't be arsed to get out of bed so would roll over and go back to sleep, only to wake a while later needing the loo! Should have just got out of bed really and saved myself the trouble!