After how many days of delivery does periods start again fr formula feed

There is no relation between formula feed and your periods. Start of periods varies for women to women.

No connection between breastfeeding and periods, not necessarily breastfeeding moms will not get periods. Some may get next cycle itself for some it might take up to 1 year also.

; There is no connection between period and formula feed or breastfeeding... BreastFeeding moms might have delay in their cycle and some don't get even for 1 year