Chris,
The female that looked as though she ovulated went through the routine and even the male lost all interest in her. The other female took to the heat and stayed there for a month or so only to show nothing in the end. This female had a male that still showed interest in her but that's not always an accurate means of determining a gravid female.
Last years litter was produced under the same conditions. The female was courted and bred for about 2.5 months total and then ovulated. A week after ovulation the male still bred her even though she would no longer copulate with him. This same male is the male that was breeding the female on the heat this year. That's why I thought he was just breeding her in spite of her looking gravid. I just have an overly enthusiastic male!
Some people like to use their males as a good indicator weather their females are gravid or not. I think I've shown that it's not always 100% accurate and I've had friends show the same results. Unfortunately many people had weird years last season. Hopefully there will be much better results this season. Ether way it all fun!
Best of luck!