I've got thin wrists too, a much lighter bone structure than my brother or father, a female leg to trunk ratio and my bodily proportions in general are a lot closer to those of the female members of my family than the male ones. I've never been very physically strong either, and in my early 40s became quite unwell with the symptoms of acute hypogonadism. Visually I look a lot like someone with Klinefelter's syndrome, however in my case it's definitely secondary hypogonadism, which rules out Klinefelters. Unfortunately I have no way of knowing for sure what happened during my prenatal development, but the symptoms I have don't match any conventional cause of intersex and are very similar to what DES babies often seem to experience.
Although the FDA withdrew their approval for DES as a miscarriage preventative in 1971, doctors continued using it off label for years after that, and the FDA guidance didn't even apply outside the US. I've chatted to some of the DES daughters about it, and there were people who were still being exposed to DES throughout the 1970s. Most places appear to have stopped using it by about 1980, so you're unlikely to have been exposed to it if you were born after then.
The other point I've been trying to make is that progestins probably have quite similar effects on male development to DES (since they too are highly effective at suppressing testosterone production in adult men), and could well be equally capable of inducing MTF transsexuality. I think the only reason we don't see genital abnormalities with progestin-based miscarriage treatment, is because the treatment generally doesn't commence until at least 16 weeks after conception, which is well past the point where genital development has finished. You still get heavy exposure during the critical period for sex differences in the brain though.
