I had my first one at 40. I tried to schedule one between 35-40 but my timing was always off. (They had an opening, I was pregnant, have baby, remember to schedule again, here comes baby #2.)
Anyway got my results today, need to have alternative views of right breast ASAP, probably calcifications, but it needs to be checked. Left breast needs to be checked again in 6 mos - radioligist (sp) says it's a lymph node, but wants to be sure there are no changes.
So, it's never to early to be checked. All of my longtime girlfriends are turning 40 this year. I've decided to be the "nag" fairy and pester them until the schedule their mammograms. It is uncomfortable, but the alternative could be a lot worse! I've know a lot to these "girls" since we were children. I hope to have them in my life for a long time to come!