16-year-old pregnant?

Under normal circumstances, if there is menstrual cramps, there may be pregnancy. It is recommended not to be careless, carefully calculate the time of cohabitation, whether in the pregnancy period. Sixteen years old girl physiological development has gradually matured, if sexual relations and encounter ovulation period will be pregnant, when cohabitation even if there is no vaginal ejaculation, inevitable secretion of sperm overflow may occur, if it occurs in ovulation period, it may lead to pregnancy. If menstruation does not come more than seven days, you can use early pregnancy test paper test, it is necessary to go to the hospital blood test. 16-year-old girls are still underage, organs are not fully mature, if pregnant during this period will cause great harm to girls.