大姨媽在的時候能不能懷孕
It's a question we've all probably asked ourselves, and one we thought there was a definite answer to: can you get pregnant on your period? Well, the answer is yes - but it's very unlikely, so hear us out.
我們可能都問過自己這個問題，我們也認(rèn)為這個問題的答案十分肯定：經(jīng)期能懷孕嗎？答案是：能--但可能性不大，請聽我為您娓娓道來。
First, it's important to understand how the monthly cycle works. Menstruation is in essence the shedding of the endometrium, which is the inner lining of the uterus. On the first day of your period, hormone levels drop and menstrual blood flows from the uterus through the small opening in the cervix, shedding the tissue lining. Around day 14 of the monthly menstrual cycle, hormones cause a mature follicle in the ovaries to burst, then release an egg from the ovary (ovulation). The egg travels down the Fallopian tube toward the uterus - a sperm can unite with an egg here, fertilising it. However, if the egg is not fertilised, the egg breaks apart and is shed during the period, which occurs back around day one of the cycle.
首先，理解經(jīng)期的運作方式是非常重要的。本質(zhì)上，月經(jīng)是子宮內(nèi)膜的脫落。大姨媽來的第一天，激素水平下降，姨媽血從子宮流向子宮頸的小開口，使得組織內(nèi)膜脫落。經(jīng)期周期的第14天左右，激素使得卵巢中的成熟卵泡破裂，導(dǎo)致卵巢排卵。卵子從輸卵管向下移動到子宮--精子可在此與卵子結(jié)合、受精。然而，如果沒有受精，卵子就會分裂，在經(jīng)期脫落，這一情況在經(jīng)期周期的第一天發(fā)生。
So can you get pregnant during your period?
所以，大姨媽來的時候究竟能不能懷孕？
The odds of getting pregnant during your period are extremely low, but it can (and has) happened. During your period, the part of the menstrual cycle when the egg is released and therefore has the potential to unite with a sperm (aka ovulation) is still several days away. But there are exceptions. According to the American Pregnancy Association, "If you happen to be one of the individuals who has a shorter cycle, there is a chance you could get pregnant while having sex during your period."
經(jīng)期懷孕的可能性非常低，但的確是有可能發(fā)生的（而且也的確發(fā)生過）。大姨媽期間，排卵并有可能與精子結(jié)合的月經(jīng)周期部分可能還要過幾天才會發(fā)生。但也有意外。據(jù)美國懷孕協(xié)會表示，"如果你的經(jīng)期較短，那在經(jīng)期發(fā)生性關(guān)系就有可能使你懷孕。"
This means that the time between your period and your ovulation is closer together. Sperm can live inside of you for up to five days after it is released, so if you have sex toward the end of your period, it would hypothetically be possible to conceive four or five days later with your early ovulation. "The probabilities of getting pregnant while on your period are low, but the possibilities are there," says the APA.
這就意味著你的經(jīng)期和排卵期相近。精子排出后能夠在你身體內(nèi)存活長達(dá)5天的時間，所以如果你在經(jīng)期快要結(jié)束時發(fā)生性關(guān)系，理論上而言，這些精子可以與四五天后較早排出的卵子結(jié)合。"經(jīng)期懷孕的可能性很低，但還是可能的，"美國懷孕協(xié)會的人員說道。
What about right before or right after your period?
那經(jīng)期前或經(jīng)期后呢？
As mentioned above, the time after your period is when preovulation and ovulation begins and hormones increase. This means you are most fertile between day 11 and day 21 (approximately) of your menstrual cycle, says the American Pregnancy Association.
如上所述，經(jīng)期結(jié)束之時正是排卵前和排卵開始以及激素增加之時。這就意味著在你經(jīng)期的第11天和第21天（大約）之間你是最容易受孕的，美國懷孕協(xié)會表示。
It's a question we've all probably asked ourselves, and one we thought there was a definite answer to: can you get pregnant on your period? Well, the answer is yes - but it's very unlikely, so hear us out.
我們可能都問過自己這個問題，我們也認(rèn)為這個問題的答案十分肯定：經(jīng)期能懷孕嗎？答案是：能--但可能性不大，請聽我為您娓娓道來。
First, it's important to understand how the monthly cycle works. Menstruation is in essence the shedding of the endometrium, which is the inner lining of the uterus. On the first day of your period, hormone levels drop and menstrual blood flows from the uterus through the small opening in the cervix, shedding the tissue lining. Around day 14 of the monthly menstrual cycle, hormones cause a mature follicle in the ovaries to burst, then release an egg from the ovary (ovulation). The egg travels down the Fallopian tube toward the uterus - a sperm can unite with an egg here, fertilising it. However, if the egg is not fertilised, the egg breaks apart and is shed during the period, which occurs back around day one of the cycle.
首先，理解經(jīng)期的運作方式是非常重要的。本質(zhì)上，月經(jīng)是子宮內(nèi)膜的脫落。大姨媽來的第一天，激素水平下降，姨媽血從子宮流向子宮頸的小開口，使得組織內(nèi)膜脫落。經(jīng)期周期的第14天左右，激素使得卵巢中的成熟卵泡破裂，導(dǎo)致卵巢排卵。卵子從輸卵管向下移動到子宮--精子可在此與卵子結(jié)合、受精。然而，如果沒有受精，卵子就會分裂，在經(jīng)期脫落，這一情況在經(jīng)期周期的第一天發(fā)生。
So can you get pregnant during your period?
所以，大姨媽來的時候究竟能不能懷孕？
The odds of getting pregnant during your period are extremely low, but it can (and has) happened. During your period, the part of the menstrual cycle when the egg is released and therefore has the potential to unite with a sperm (aka ovulation) is still several days away. But there are exceptions. According to the American Pregnancy Association, "If you happen to be one of the individuals who has a shorter cycle, there is a chance you could get pregnant while having sex during your period."
經(jīng)期懷孕的可能性非常低，但的確是有可能發(fā)生的（而且也的確發(fā)生過）。大姨媽期間，排卵并有可能與精子結(jié)合的月經(jīng)周期部分可能還要過幾天才會發(fā)生。但也有意外。據(jù)美國懷孕協(xié)會表示，"如果你的經(jīng)期較短，那在經(jīng)期發(fā)生性關(guān)系就有可能使你懷孕。"
This means that the time between your period and your ovulation is closer together. Sperm can live inside of you for up to five days after it is released, so if you have sex toward the end of your period, it would hypothetically be possible to conceive four or five days later with your early ovulation. "The probabilities of getting pregnant while on your period are low, but the possibilities are there," says the APA.
這就意味著你的經(jīng)期和排卵期相近。精子排出后能夠在你身體內(nèi)存活長達(dá)5天的時間，所以如果你在經(jīng)期快要結(jié)束時發(fā)生性關(guān)系，理論上而言，這些精子可以與四五天后較早排出的卵子結(jié)合。"經(jīng)期懷孕的可能性很低，但還是可能的，"美國懷孕協(xié)會的人員說道。
What about right before or right after your period?
那經(jīng)期前或經(jīng)期后呢？
As mentioned above, the time after your period is when preovulation and ovulation begins and hormones increase. This means you are most fertile between day 11 and day 21 (approximately) of your menstrual cycle, says the American Pregnancy Association.
如上所述，經(jīng)期結(jié)束之時正是排卵前和排卵開始以及激素增加之時。這就意味著在你經(jīng)期的第11天和第21天（大約）之間你是最容易受孕的，美國懷孕協(xié)會表示。
