Mine came back about a month after I had my baby. I never missed a period, until I got pregnant at about 7 months postpartum. I never missed a period before being pregnant as well. If you are for sure 7 days late, you are probably not pregnant. You might just be really stressed or something like that. Also, I have been pregnant 2 times all while breastfeeding, so you can get pregnant while breastfeeding.
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