I don't want to have a kid while in medical school
Are you seeing someone currently?
Yeah, but I don't think it would be a good idea to get pregnant while studying to become a doctor.
It is difficult to have a child while you are still attending medical school so it is good that you are waiting to have children. This way you will be able to dedicate your time to your children when you are ready.
I went to the doctor and asked for birth control and she laughed in my face.
The find another doctor that will help you get birth control. Use her as a motivation when you become a doctor. To be not like her but someone better.