FLDS and common law marriage
[After I posted this, someone in a Usenet discussion pointed out a provision in the family code that prohibits persons under 18 from entering into a common law marriage. I don't know how that applies to someone who entered into it in another state and then moved to Texas.]
The Texas authorities claim that, out of 53 girls 14-17, 31 either are pregnant or have had at least one child--a way of putting it that obscures the fact that only two are actually pregnant. The age of consent in Texas is 17, so a 17 year old girl can be pregnant without any law having been violated. The minimum legal age for marriage (with parental consent) is 16, so if there was a legitimate marriage, a sixteen year old girl can be pregnant without any law having been violated. It sounds from the page I found as though a common law marriage counts.
The minimum marriage age was raised from 14 to 16 only three years ago. So a woman who is currently 17 might have been legally married at 14 and had one or more children by now.
There is a further point worth making here. A lot of the support for the attack on the FLDS comes from the widely held view that the normal pattern is for girls to be married off to older men shortly after they reach puberty and promptly start having babies. It is hard to see how that can be true if, as the Texas authorities have admitted, only two girls out of 53 in the 14-17 year age group were pregnant. And if that picture is false, that undercuts the whole argument for the extraordinary treatment they have been subjected to.