A couple years ago, I saw a movie on LMN (or a similar "women's network") about a man who needed to have a child in order to inherit a fortune. But he didn't disclose this information to the woman he married. The extra twist to the plot was that he was sterile. So, he kept trying to drug his wife and having another man impregnate her.
The marriage fell apart and he tried to have her murdered, but the assasin accidentally killed the man's secretary (with whom he was having an affair). Meanwhile, late in the woman's pregnancy, she discovered the truth that he was not the father of her child.
I was not able to catch the last of the movie and wanted to see how it ended. Does anyone know the name of the movie I'm describing?