I doubt she'd eat more than once (if that) if the snake was truly gravid. Actually, I wouldn't even attempt to feed a gravid snake. They are literally HUGE when they are gravid (have you seen the SIZE of Ball eggs????) so adding food to that equation just isn't really possible. I've had one take a meal after PLS, but that was the only one and that was 8 years ago when I didn't know what I was doing, LOL!
Keep us updated though. I'd be very interested to know if that snake lays eggs!