engely 发表于 2-8-2012 03:36 PM 
自从两个月时见红后，我跟老公没有行房了，曾经有试过放开心理障碍去尝试，可是每次也失败。。。老公根本 ...
有一个。。很安全的方法。。我是在外国的 baby centre 读的...
绝对是跟你分享而已。。。
比起内射, 把精液吞了....跟有效
http://www.babycenter.com.au/pregnancy/labourandbirth/planningyourbabysbirth/naturalbringonlabour/#6
Sex
Sex as a means of getting labour started is thought to work in three ways: firstly orgasm may help to stimulate the uterus into action; secondly, sex can trigger the release of oxytocin, the "contraction" hormone; thirdly, semen contains a high concentration of prostaglandins which may help to ripen, or soften, the neck of the womb (cervix) ready for it to dilate when labour starts.
Is it safe?
Sex is safe as long as your waters have not broken. Once this has happened, making love may increase the risk of infection. You should also avoid sex if you have a [size=1em]low-lying placenta (placenta praevia) or have had [size=1em]vaginal bleeding. Men often feel uncomfortable making love to their partners with a baby so obviously present but the baby will not know what is happening and will not be harmed.
Does it work?
There's not much evidence that it does work. Of the small studies that have been carried out all but one suggest that sex neither helps to ripen the cervix nor to start labour earlier. If nothing else, it will take your mind off the waiting!
How do I try it?
At this stage in your pregnancy [size=1em]sex is easier said than done. Try spoons, with your partner entering from behind or use the bed as a prop: your bulge isn't an obstacle if you lie on your back at the side or foot of the bed with your knees bent, and your bottom and feet perched at the edge of the mattress. Your partner can either kneel or stand in front of you. Alternatively, giving your partner oral sex may work better. It is thought that prostaglandins are absorbed more efficiently through the gut than through the vagina. (Note: you may prefer to keep this piece of information to yourself!)
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发表于 2-8-2012 03:17 PM
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