Hi all so I am due to have a baby girl in 5 weeks and just looking at Prams. Maybe I left it a bit late as the one I really wanted isn't available until a couple of weeks after my due date. I really wanted one with a car seat that goes with it so I can just take the car seat out and put straight onto pram base. I've seen a couple of other prams, one significantly cheaper but the car seat included in the package doesn't come with a base. Is a base necessary? Are bases universal if I wanted to buy one separately? Or is it worth spending ( significantly) more to get one with the base included?