I'm 21, want a baby but know I shouldn't with my bf of 2 years

Krystin • I love to draw, and get creative. I got a little doggy named Benni with my boyfriend.
So I'm 21 and been with my boyfriend for almost 2 years. We are very in love and I can't help but feel like I want a baby physically like mentally I know I don't want to now, but I want him to cum in me and I want to get pregnant. How do I stop these urges and is it normal? We do not live together we are in the process of looking.