To be honest: I think her thinking was that her biological clock would run out by the time she got out of prison, so she decided to have a baby or two while she could.

Although quite uncharitable, I can believe this has some truth to it. She underwent a visible transformation for the trial, wearing her hair down and changing her entire mien. Quite a contrast to her appearance during the Theranos years.

I think she thought she'll never go to prison, just like she thought her startup would work, despite all the scientific knowledge against it. So why not get pregnant?

I don't think this is a reasonable take. She's 38 years old and will serve roughly 10 years. It is not in fact normally the case that having a child gets you out of federal prison time. It's much more likely that this was her last opportunity to have kids, given her timeline, and she took it. The kids will do fine. They have a stable family situation.

Coming from other angle. She might have gotten kids to lock up the marriage or at the least the alimony. Even despite conviction. I think we must be honest that this often happens.

She may be a sociopath, but I don’t think being pregnant is proof. Prison sucks and ten years is a long time: id probably try to gain sympathy points as well.