How long can a natural birth take to get pregnant

After 42 days of normal labor to prevent cohabitation, after 42 days of cohabitation pregnancy can be natural, do not need contraception, can be pregnant at any time. Generally in postpartum lactation will inhibit ovulation, showing amenorrhea, menstrual cramps time has individual differences, short is 2 months, long is a year. Different from cesarean section, due to uterine scar, repair takes 2 years, this time need contraception, otherwise pregnancy scar healing is not firm, as the uterus increases, there is a risk of incision rupture, uterine rupture, need contraception for 2 years to become pregnant.