I wasn't going to say anything in the prior thread but I agree with Jeremy, that boa looks overweight or that is the biggest, largest ovulation I have ever seen. Her tail doesn't look overly fatty so I wasn't sure if it really was just overweight or not. Typically the swelling is centered in the back part but her entire body looks super thick. Gravid boas don't usually start looking huge until about 1/2 way through gestation. But who knows, I've been wrong before.
Male boas court, courtship can last anywhere from a couple hours to 2 or more months. The female will have a pre-ovulation swell which isn't always noticable, then will allow the male to copulate. Afterwards the female will ovulate followed by the POS (post ovulation shed). That shed cycle is usually longer than normal.
well, good luck!