I'm 19 years old, and in a 2 and a half year relationship with my boyfriend. I can't exactly pin point when this happens, but I randomly have moments where I want to have a baby. I don't know why or what might trigger these feelings, and even though I KNOW at this point in my life I probably would not be able to support this "baby", I still yearn for the unconditional love of a child. My best friend thinks this is normal, but I want other opinions!
1) When I was about your age, 19, and I was madly in love for the first time in my life. It was bizarre because I knew I was too poor and too young and he didn't want children, but that feeling still popped out of no where! I ignored the feeling and it went away after a few months. We broke up not long after. (Whew - dodged a bullet there!)
2) At about 23, when I was visiting distant relatives who lived these beautiful lives in this beautiful place and had beautiful, angelic children. LOL. Even though I grew up in a nuclear family, we were never close or even really liked each other. When I saw how much love my relatives had for each other, some weird maternal/hormonal thing happened and suddenly I wanted to have a kid. I ignored it and it went away after I left.
3) In my mid 20s I worked as a child abuse investigator. Just the fact that you're around children all day that are so neglected and need you sooooo much automatically makes your maternal instincts kick in. I ignored those feelings then too.
I am so happy that I never had a kid when those instincts popped up. I was able to finish my education and start my own business and build a bit of stability for myself all on my own. I know most of it wouldn't have happened if I had an infant or small child during those years. Now I'm approaching my 30's and I may or may not have children, but I definitely know the feeling of suddenly wanting one.