I did some quick digging online and came across a few different sources saying the girls are not paid until the end of the first season. It seems the girls get two seasons - pregnant and one year out from birth. After that it's a new set of girls, right? If so, then at max they get about $280,000 for those two years. The children are technically working so some of that money has to be legally set aside for them.
The show is good, in theory. But, I think it should be something that stops production for several seasons and then starts up again so there is less the chance of girls being able to "plan" to get on the show and instead be more of a docureality. Nobody likes a fame whore who is charged to care for an infant/small child.
Even still, teen pregnancy is nothing new. It was even at one time socially acceptable and expected. Now that there is so much more to do in life than just be a mother and wife for a woman's career choice, teen pregnancy is OMG the EPIDEMIC. (I'll save the biology lesson for some other time.)
At the end of the day I can go to sleep knowing that there are a handful of children who are going to get a really nice headstart to life. When the mothers mature and see the episodes again, they'll better be able to see. Hindsight is always 20/20, right?
What these girls need are mentors whom they respect and admire. There are a million opportunities for mistakes in the future, some are necessary and some should be avoided at all costs. It takes the right person at the right moment pointing it out to make a difference when dealing with this level of stubborness. I know, I used to be one of them.