I am 4 weeks and 2 days post partum. i have the mini pill script. when can i start this? anytime? or have to wait for a period?

About the next baby: If a postpartum woman waits until her next menstrual period before starting contraception, she may be well on her way with her next baby already... because she may ovulate before she realizes it. Women should start contraception BEFORE having sex, when postpartum. If she has already had sex before contraception, and later worries about pregnancy, she can do a pregnancy test 3 weeks after sex.