Getting my female to stand for male

Question
Renee, this is my second question about my female not standing for the male.  She is now on day 11 of her cycle, from the first day she started bleeding.  I knew she was getting close to coming into heat, so I was checking her several days prior to this.  She really hasn't bled all that much, but she does keep herself pretty clean.  Approximately 5 to 7 days from the first show of blood, the discharge changed to a more pinkish color.  Now, on day 11, there is very little discharge and it seems to be pretty clear.  We took her to the male on day 5, 7, 9 and today on day 11.  On days 9 and 11, she seemed to stand a little better for him, but she's pretty wiggly and then right as he's getting ready to do his thing, she turns and nips at him.  We tried holding onto her collar so she couldn't turn to nip, but then she just moves her back end so he falls off.  I have read from many people about the discharge changing to a creamy tan color.  Is this true?  I have yet to see this.  Should we keep trying and at what point is it too late??  We would love to get her bred but not so much so that we're willing to AI her.  Could there be something wrong with her??  Also, I would like to stress that when she nips at him, she's not being mean or aggressive, it's just like she's saying, "Hey, what are doing there?"  She is an extremely spoiled part of our family and I wonder if that could be part of it, too.  Please help.  Thanks.

Answer
Hi. I would try again in a day or two and see what happens. Some girls ovulate later into their cycle, making them stand later. I have known females that wouldn't let a male around her until day 19, and then be bred, and whelp a litter 63 days later. Most breeders try on days 11 and 13, or on days 12 and 14, so you still have a few days before I would worry. Check her vulva. Most dogs' vulvas will soften up a bit when ready to be bred. Another thing, sometimes the female doesn't want anything at all to do with the male you pick out for her. If she refuses to be bred this heat, I would take her in for a check up, and if everything's ok with her, then maybe think about using a different male. The next time you take her to the male, step outside of the room, and let the stud owner try. Sometimes if a dog is spoiled, she will refuse to be bred with her owner at hand.