Does ovulation mean you're not pregnant?

Generally pregnant follicles will also develop, but will not mature discharge, if there is ovulation after the same room that can not determine whether pregnant, ovulation four to five days before and after the same room is likely to be pregnant. Ovulation period is generally fourteen days before the next menstrual cramps, if the menstrual irregular ovulation period is not good calculation, if you do not want children, it is best to take contraceptive measures such as birth control ring or condom to prevent accidental pregnancy, pay attention to maintain genital hygiene, warm water every night to prevent infection.