Dogs go into heat at any time between 6-12 months usually. They are not normally bred until their third heat to make sure they are mature in body and mind before having to raise pups of their own. Usually they come in heat every 6 months after the first heat.
Dogs are usually in heat for about 3 weeks. The first week they have a red discharge, then the second a clear or straw colored discharge, then almost no discharge the last week. They usually are willing to breed sometime in the middle of their heat cycle usually in the range of days 9-14 of their heat season. Dogs are individuals so you have to see when the female is agreeable as there is no one specific day for sure.
One sign of her being ready would be for her to 'flag' or roll her tail to one side when touched on her hind quarters.
Usually you select a dog in advance to breed to your female. If you do not own the male you bring the female to him.
Ordinarily the stud owner would have a contract and this would stipulate payment or puppy choice. Make sure you have in writing all the agreed upon info including when fee is to be paid and if a puppy is chosen when that will happen, and if only one puppy is born etc.
Normally during breeding the male ties with the female for several minutes up to over 1/2 an hour while the sperm is transfered.
Usually you breed two or three times over the next couple of days to ensure the female gets viable sperm for when she ovulates.
Hope this helps you!
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