Yvanne, I got mine off ebay, worked out at about £110, its jogging stoller and its side by side. I got a litaf buggy board as well but yours might be a bit young, it depends some are okay and some arent. It has a seat.
Are you bottle or bf. I tried to explain to mine that baby would be getting milk out mummys boobs and she just eyed me suspicously. She later pointed out my boobs to a packed bus. Thats what I get for bringing it up!