It's supposed to speed up having babies if you are connecting with another tama via infra red..If you aren't connected to another tama it doesn't do much except for what you're describing It will stop after a while and it shouldn't hurt your tama at all *GOOD LUCK*
actualy, that only happens when u use the love potion "honey" you will only be able to make babies when they r both 5 years old or more and they r at least best friends. if not theyll just be nice to each other and friendship will incress!!