To not donate to her moving house?

[SnackSnackEatAndCrave]

A friend that I went to school with is pregnant, and having to move out due to overcrowding (2 primary aged children already)
They are not well off at all, and people are rallying round to help find them a new home before their baby is due in September.
We were part of a group of about 8 girls at school who have stayed friends, and the other girls are making a big effort to collect money together to help fund the deposit on somewhere new, and all the moving costs.
I do think this is lovely, but on the other hand they have just started loaning a horse for their eldest DD! It's not uncommon in our area for people to be stupidly poor and still keep horses, they're mad about them round here, but I think it's bonkers to take on that financial responsibility when you know you have a new baby and imminent house move that you can't afford?!
I've just said I can't afford it right now (Which is true, DP and I have had some issues lately and are paying for private therapy), and have donated a load of DDs baby things, but the other girls are making me out to be heartless for not giving at least £100 to the deposit fund!
AIBU to not give? I'm worried about our friendship group going forward if not, and she is a lovely person, but if you can pay for a horse surely you can sort your own moving costs?

Thanks everyone again... I've had 2 of the group on the phone since I left work to ask if I can "just do 50 instead?!"
There's so much milking going on now. They've got a crowd funding page, they're all sharing it (including the pregnant friend, with comments like "My amazing friends are changing my life sooo grateful if anyone else can help). Honestly, I'm starting to wonder how we've been friends for so many years.
I've stuck to my guns. They can have DD's moses basket, monitor, bouncer and clothes... But no money.
@PossumInAPearTree did they really?! I'm amazed, I thought all contraceptives were 99% effective at best, my GP is always very firm that nothing is fail safe. I might tell my friend to sue then she can have a house and a horse

They are only 99% on the whole, but equally that is good enough that she can't really be accused of being feckless for falling pregnant in such circumstances

The pregnancy is obviously not her fault but keeping horses when she doesn't have enough money to house her family adequately definitely is.

Good on you for standing firm, OP.

Oh no I'm not blaming her for the pregnancy... My DD was also a surprise, so I know accidents happen I was just really interested in a comment upthread about someone sueing the implant manufacturer!

Stick to your guns, tbh I'd not be giving her your baby stuff either.

The pregnancy may not have been planned but that doesn't mean every one else should pick up the tab.

How many friends are donating £100? I can't imagine it's enough to actually fund a house deposit or any moving costs? Unless her group of friends have money to throw away!