Fertility tester technology

Some country today, is suffering poverty and huger due to the rapid growth of population. There are a lot of contraceptive use today to control this growth population. One of this method is the calendar method or the menstruation cycle. However, there are some instances that accuracy of the said method is not consistent, so it is still possible for a woman to give birth thought their using the calendar method. Fertility tester technology is just like a pregnancy tester, through the urine of the woman, it can tell whether the woman is fertile or not. Unlike the pregnancy test, that only check whether the woman is pregnant or not. Of course, PT or the pregnancy test is use after the intercourse, while the FT fertility tester is use before the intercourse, for the couple to know if they can have a safe sex.