My dog died in October and we have no plans to get another one.
I finish uni in december and have literally no idea what job I'll be getting after that, so no ideas about how long I'll be out through the day.
We're no exactly flush at the moment and have a cat with lymphoma which is costing an arm and a leg.
If we got a new dog it would stress out the cat in what might be her last few months - which isn't fair to her at all.
DP is vehemently opposed to getting another dog.
So completely valid reasons not to get one, but my friend phoned me this morning and told me she's getting a puppy and now I'm sat here all
and 
I don't want a puppy, they're hard work....please convince me I don't, lol