Baby fever

Hello everyone. I'm a student at HU in Long Island. I'm almost finished. I will be turning 23 next month and I have a serious case of baby fever! Is this normal for someone as young as me? I plan on attending grad school but I can't seem to shake the feelings of wanting a baby. I got a puppy. I've even downloaded Tom cat but nothing works. Does anyone else feel that way? What have you done?