Ok, her tail is nearly back to its origial size she wasted no time in eating. There is no need to breed her again even hough this is her first time correct?
In my experience some females dig weeks before laying others dig only the day of. First timers usually dig a lot. I wouldn't be worried. I put some first time RAPTORs together on 3/10/12 and didn't get eggs from them until 5/13/12. Sometimes its hurry up and wait. But I'd say you have nothing to worry about.