Resolution is the number of <term>pixel</term>s (individual points of color) contained on a display monitor, expressed in terms of the number of pixels on the horizontal axis and the number on the ...
The bleeding should last no more than 3 weeks and should be more intense during the first days. The dog can get pregnant only during the first 2 to 3 days after the heat cycle has started. If you want to breed your dog, you will have to ask a vet to determine the best time to do this.
Female dogs have their first estrus cycle -- known as coming on heat or being in season -- at around 6 to 7 months, though it can be as early as 4 months or as late as 2 years in some breeds and individuals. From then on, most bitches come on heat twice a year. During estrus, female dogs have a blood-stained discharge. Pro-Estrus Bleeding The first stage of estrus is pro-estrus, lasting 4 to 15 days, and a hormone called estrogen is produced causing changes in the bitches' wombs and vaginas in preparation for mating.