How much does it cost to go to college to become like an OB-GYN Doctor or something related with kids?

Answer 1

It can be several 100,000 dollars for Medical School plus the 4 years to become an OB/GYN or the 3 years to be a Pediatrician.

A good site where you can probably find out more about the costs of Medical School and Residency is at: http://www.ama-assn.org and also at: http://forums.obgyn.net/womens-health (there are doctors at this site that answer questions)