Desperate mum seeks advice on nappy hating 20mth old

[Helgand]

DD (20 mths) persistently takes off her nappy (and often all the rest of her clothes)during the day and the night and I am absolutely at my wits end. Furniture is getting ruined. Potty success is minimal and probably a fluke anyway and when I tried potty training according to all the books and kept the nappy off etc she started screaming no every time I mentioned a wee and instead asked for a nappy!!!! This has led to terrible problems with getting her to sleep at night as we have to stay with her until she is fast asleep so she doesn't take off her nappy and sleep in a wet cot. This is taking up to 2 hours at times. Previously we could put her down and she would get herself to sleep. We have now put her in a bed for the night sleep but still have to stay with her to keep the clothes and nappy on. On top of this, I am 34 weeks pregnant & highly likely to have a section, probably early as well, and dh has just gone back to work after 5 weeks at home. She has become very clingy and has started to ask for cuddles for the first time ever. Any advice would be gratefully received as there are moments in the day when I feel I just can't cope.

Parcel tape. Pass it several times right round the nappy. Seriously.

Also grobag-type thing put on back to front (ie. zip at the bag). For really hard core Houdinis you can secure the zip to the fabric with an old-fashioned lock-headed nappy pin.

Have you tried putting the nappy on back to front so that tabs are at the back? - or is she just pulling it down? Could try pull-ups and see if she doesn't pull them down as they are like pants if she just hates nappies. 20 months can be young for potty training - my dd who is 2 likes to sit on the loo (doesn't do anything just likes to sit, flush & wash hands!) but hates the potty so much that she throws it away!!

All-in-one pyjamas on backwards?
Have you tried Fuzzibunz nappies at night? For £25 on Ebay you could get a few of these 2nd hand and some toddler prefolds to stuff them with. They popper up and are elasticated at the back so you can pull them up like 'big girl pants.' If they're just weed in you can stick them in with your clothes at 40degrees in the morning.
Once I stopped putting nappies on my dd (at 24m)she refused to wear her normal nappies at night. 'Big girl pants' just don't look/feel/go on the same so she was quite chuffed to wear them. Once she is out of them (and she will be one day, hang on in there (hugs)) they can be used when your new baby is at the same stage.
20m is very young, she's probably just confused and rebelling so I'd leave it til the spring and you're all feeling more settled.

Just seen message but I would suggest grobag-type thing too for bedtime.

try to do one thing at a time - you are all going through a lot of change so she may just feel a little unsettled.