This is my first time breding my does. They are nigerian dwarf and my one doe is 2 and is slightly overweight and this is the first time she is bred. I have not been able to know when she was in heat but I took her to be bred and she was there with the male for 3 weeks. She has been home now for 2 weeks and I noticed a yellow crusty on her vulva when off looks like some white mucous. Is this normal or did the breeding not take or maybe starting to abort fetus.