Exclusive breastfeeding is associated with high levels of prolactin. (verywellfamily.com)
Let's do a little recap here: Low levels of dopamine lead to high levels of prolactin which in turn lead to reduced levels of LH and ultimately lowered progesterone. (nicolejardim.com)
High levels of prolactin also suppress the hormones that enable ovulation and egg growth and maturity. (lactationconsultantresources.com)