A young girl menstruation has not come, mother accompanies her to go to the gynecological examination, the young girl asserted that she never had the sex act, mother had also said the daughter was the outstanding high-school student, only understood studies, after gynecologist inspected, discovered that the few Nuzhen sex act, has not had to seek the reason to diagnose and treat in addition. Not only also one month, the menstruation has not come, the sign which is pregnant to be very actually obvious. Under presses only then knows, young girl and boyfriend intimate excessively, although does not have the true sexual intercourse, actually has had the coitus interruptus, actually this was not Arabian Nights, gynecology department doctor said that she once had come across ten example hymen complete teenage pregnancy instance.
Why will have in vitro row of essence to be pregnant? Must know, the man one time discharges the seminal fluid has 2,000,000-3,000,000 sperms. The seminal fluid is farthest may project 50 centimeters, the sperm moving force 1 hour may run 65 kilometers. The vagina nearby sperm in 1.5 to 3 minutes may enter the uterine cavity, in 30 minutes may reach the oviduct. The sperm can live in vitro to from 24 to 48 hours.
Looking from the physiology, the young girl gives birth the function most exuberant time, so long as has the ovulation, the conception rate is also highest; When the nature is excited, the vagina secretion may flow to vitro and the seminal fluid mix, the sperm is suitable the intermixture to tour into the vagina, the cervix to arrive at the womb, by now returned to the egg which exactly comes from the oviduct, will become pregnant, but coitus interruptus seminal fluid like residual bride’s side genitals, also will not have to flush immediately, under the warm and damp environment the sperm easy to survive the reason which will also be possibly becomes pregnant.
Therefore, does not have the direct sexual intercourse, the coitus interruptus similarly to have the being pregnant possibility.
