Has anyone's insurance ever called them when they found out you were pregnant?? I got a call about…

Has anyone's insurance ever called them when they found out you were pregnant?? I got a call about two days ago from my insurance saying they heard I was pregnant and asked if I still was, I said yes, they asked if I wanted a nurse to call me within the next week to further discuss some things. The lady on the phone did say I was eligible for either a car seat or a stroller, and also a breast pump. (She told me they usually run between $300-$500 and mine would be free). I'm just curious because I have never heard of anyone's insurance calling them first.???