Buying a Jeep

Hey ladies, being that I’m not getting pregnant hubby and I are going to take a break from TTC in the meantime I will be saving to buy a Jeep. Hubby and I already have a car but it’s mostly his. I want my own car and handle everything in my name. Any tips or advice you guys would recommend for me? How much money should I put aside weekly or bi weekly ? What to look for in a car? Any little bit information I could get would be very beneficial.