I had my pram in the house months before my daughter was born beacuse I have medical problems and thought I needed to get everything prepared well in advance incase I got taken into hospital for bed rest. As it turns out it I didn't need to be so prepared as I was totally healthy, and the pram didn't jinx us as my little girl was born one week late and absolutely perfect!
At least I got to practice putting it together and folding it up, before I needed to use it! Your choice though!! :)