The National Women's Health Information Center lists these common causes of urinary tract infections in women: 1  Wiping from back to front after a bowel movement. 2  Having sex. 3  Holding urine for too long.  Being 1  diabetic. Having a kidney stone or other factor that makes it difficult to urinate.  Producing less estrogen, such as after menopause.
However, the estrogen hormones in Premarin Vaginal Cream may decrease the production and quality of breast milk. It is for this reason that estrogen-containing medications (including Premarin Vaginal Cream and many birth control pills) are not usually recommended for women who are breastfeeding.
First, here's what breastfeeding moms shouldn't take: estrogen. Forms of birth control with estrogen can lower milk supply, so we try to avoid them in breastfeeding moms, explains Cristina Perez, M.D., ob-gyn at the Women's Specialists of Houston at Texas Children's Pavilion for Women.