The breastfeeding hormones are not exactly helping your libido. But moms are affected to various degrees. How about you? Is your sex drive higher or lower when you breastfeed than usual?
You can learn more about the breastfeeding hormones here.
In addition, there are other factors that may also affect your libido while breastfeeding.
You can read more about the reasons for a low libido when breastfeeding here.