Hey just a little update:
Well my and my husband decided to take all points into concideration and decided it was best to wait to introduce a new pup into the family when Poppy is at least a year old and that way we can concentrate solely on her through her puppy stages and take things from there.
Howevwer we had good news my mum decided to buy the little pup we had booked- so now I have best of both worlds- a puppy friend for my little Poppy without the mess or hassle!!
I will post pics soonx
ps thanks for everyone's advice..