After male love and passionate snapping, without a good aftercare, there can be non-stop, endless, constant worry! Unreliable aftercare is common: in vitro ejaculation. Also known as interrupted intercourse; Advantages: no cost, no interruption of pleasure; an ancient method of contraception, said to be found in the entire Old Testament. Genesis chapter 38 is recorded; because before ejaculation may have been a small amount of semen into the vagina, retreat when the couple with the problem, there is a great possibility of unwanted pregnancy; Zhejiang Xiaoshan Hospital Gynecology Department Yu Ligang safe period contraception. Folklore rumor has it that the first seven and then eight, but women’s ovulation is affected by sleep, emotions, and the environment ，，，， many factors; emergency contraceptive pills. Generally a large dose of progestin, which can easily lead to endocrine disruption, abnormal menstrual cycle and period; and is generally effective within 72 hours after sex; retrograde ejaculation. When a man has the ejaculatory pleasure, he uses his fingers to press firmly between the scrotum and the anus, towards the pubic bone, and then relaxes when the pulsating sensation disappears completely and retreats from the penis. The main point is difficult to master, and semen repeatedly flows backwards into the bladder, making it easy to have frequent urination after intercourse. Midway with a condom. Snapping without wearing, feeling to ejaculate before bringing a condom, slightly better than the kind of in vitro ejaculation only kill regardless of burial, but a small number of stray bullets have already entered when the bare shoulders.