 the group of 35 to 44 year old women women 35 and older are at increased risk of pregnancy complications so we thought that was a valid group to look at but of course people who are 35 are still having babies so we then looked at women 40 and older as well it's a better chance that if you haven't had one kid by 40 you probably aren't going to have any and what we see in people 40 plus is that around 28