Am in a relationship with a guy which have lasted for about 4months now, He want to marry me but am not ready to get married for now, he still want me to get pregnant , For me am ready to get pregnant but not to get married.He say he will cater for everything but I wonder if I get pregnant then he stop catering for me so that I will be forced by the circumstance to get married.
He is a caring guy and I love him, Please advice me on what to do.

Personally after four months with somebody I would not even think about moving in with them never mind have a child or marry them, way too soon.
Get to know each other,give it a few years until you are both ready for these things.

You should be having fun and getting to know each other better. In a year or two you can talk of the future, but 4 months?? You can't know a lot about each other even though you are attracted to each other, things can change.