female dogs have their periods twice a year (every 6 months). their first period will start anywhere from 8 to 10 months of age depending on the breed. their period last anywhere from 2-3 weeks at a time. and you are correct dogs get pregnant during their period. when breeding your dog you must leave her in a area with room for her and a male to mate she must first accept him as a mate. also when breeding your dog make sure she has her space she will be very curious, and dogs are more likely to get pregnant in the middle of their menstrual cycle.
and as a hint and for the protecting of your dog to cause her less pain and suffering during during her pregnancy and labor wait until the second or third time she has her period before you breed her, this also gives her body a Chance to go through her cycle at least once and helps prepare her body for carrying her puppies
2006-09-29 16:07:55
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answer #1
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answered by Ashley 2
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Estrous Cycle of the *****
The estrous cycle of the ***** contains four distinct stages that can be followed cytologically (Table 1). These stages include proestrus, estrus, diestrus, and anestrus. For some simplification and indication of which structures predominate throughout the cycle, these four stages may be grouped into the follicular phase (proestrus and estrus) or the luteal phase (diestrus and anestrus). The ***** frequently has been classified as monocyclic or having a reproductive cycle that lacks frequent, recurring periods of heat and has a long period of anestrus regardless of pregnancy status.
Proestrus: Proestrus typically lasts about 9 days. This is the reproductive phase that immediately precedes estrus. Estradiol concentration increases as ovarian follicules mature and the uterus enlarges. The vaginal epithelium proliferates accompanied by diapedesis of erythrocytes from uterine capillaries. Thus, erythrocytes account for most of the cells observed on vaginal smears at this reproductive stage. Grossly, vulvar edema, hyperemia, and a serosanguineous discharge occur.7,8
Estrus: Typically, estrus lasts for about 9 days. Estrus is characterized by the period of acceptance of the male by the *****. The female will seek out males and stand for them prior to copulation. This stage of the reproductive cycle is difficult to determine cytologically because distinguish features are only present microscopically at the beginning and the end of estrus. During estrus, glandular secretions increase, the vaginal epithelium becomes hyperemic, and ovulation occurs. This stage of the reproductive cycle is influenced mainly by estrogens. The interval between successive estrus cycles is typically seven months.
Diestrus: This is the period where corpora lutea (CL) are present. The CL are fully functional and secrete increased large quantities of progesterone. During this phase of the reproductive cycle, the ***** refuses to accept the sexual advances of the dog. Physiologically, the uterine glands undergo hypertrophy and hyperplasia. The cervix constricts and vaginal secretions become tenacious. The length of diestrus is variable; however, regression of CL requires approximately 70-80 days.
Anestrus: Anestrus is a prolonged period of sexual rest where the reproductive system is quiescent. Secretions are minimal and very tenacious or absent. The cervix is tightly constricted and the vaginal mucosa is pale.
2006-09-29 16:21:51
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answer #2
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answered by Anonymous
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It only depends on how old you dog is. and some dogs don't really have a period but when s dog is in season she will most likely be able to get pregnant as soon as she starts her cycle. she will stop getting her cycle when she gets to old to be bread other wise i think she'll have one until you get her fixed or not. But the only way she gets pregnant is if a male dog gets her that way.
2006-09-29 15:32:18
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answer #3
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answered by Anonymous
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I have lots of dogs to just let you know that up front. The ***** will have a heat cycle every 6 months which will last 21 days. the most likely time of getting pregnant is usally mid-cycle. Hope this helps....
2006-09-29 15:25:39
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answer #4
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answered by mfroeh 3
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Dogs usually go into heat twice a year, each heat cycle lasting about 2 weeks. This is the time in which she will get pregnant. The best thing would be to get her spayed ASAP.
2006-09-29 15:23:45
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answer #5
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answered by IndyVetTech 2
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Please get your dog fixed.
Unless you are a professional breeder or have a show dog, you don't need to have a bunch o puppies that will end up in the shelter being gassed to death. And trust me, if she is in heat, a male dog will do just about anything to get at her.
Please be responsible and get her fixed at the earliest convience.
2006-09-29 15:33:09
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answer #6
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answered by roaddogs_squeeze 2
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my female dog goes into heat about every 6 months or so
2006-09-29 15:23:06
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answer #7
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answered by Christie 2
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about every 6 months she can get pregnant when in heat
2006-09-29 15:24:11
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answer #8
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answered by aussie 6
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she'll get one about twice a year. I can't remember when they become furtile. I think it is after the bleeding stops.
2006-09-29 15:23:39
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answer #9
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answered by wondering247 3
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they go in heat twice a year,and it lasts 1 month.
2006-09-29 17:16:49
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answer #10
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answered by da brat 2
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