What does it mean if progesterone vaginal suppositories do NOT delay your menstrual cycle?

Yes

yes

Yes it can. Progesterone is released from your body prior to your period.

Yes. The stress of surgery on your body can mess up your periods for a few months

It keeps the endometrium (the uterus lining) thick to prepare the uterus for implantation of the zygote. In the start of the menstrual cycle, it is the drop in the levels of this hormone that trigger...