Who cares why other women get them? If you don't want one, don't get one. If it provides security for some then that's great. If people just want to see the baby that's awesome too. I didn't know how far along I was because my period is really irregular, I wasn't TTC, and I'm not the keeping records kind of gal. I'm glad I went because my due date estimate was weeks out. Honestly I couldn't give a rats cr@p what other people do.