to keep or not to keep....

My boyfriend and I have been together for 11 months and were only 21 but I am five weeks pregnant. I've never thought about keeping the child until yesterday when he said he wouldn't mind raising a child with me.  He didn't care if we got married or became friends or just stayed in the relationship we're in. In just one day we talked about just simple little things but he sounded very excited about it. I still don't know if I want to keep it or wait till I'm older and have more life experience under my belt.