It's possible, but remember we are talking about an older man, 24 who knocked up a younger woman, 17 I think. No way to know for certain, but I suspect she did not know of his other wife. There was something that I read about her telling Barak Jr, that the divorce was because of the other wife. The problem with that is:
Would a divorce even be required if the marriage was not legitimate in the first place? I'm asking, because I don't know.
A Kenyan marriage would be legitimate.
Even if it wasn't a Kenyan marriage, and the Maui wowie marriage was invalid, the courts would still need to be involved to protect the interests of the baby.
At least that’s my understanding...