There are two hormones that are responsible for the regulation of the menstrual cycle. They are called estrogen and progesterone.
Progesterone looks to be more important for menstruation. You need fairly large dose of oestrogen in absence of the progesterone to maintain the menstrual cycle.
Estrogens and Progesterone in the ovaries"with a bit of wit"
Estrogen is the female hormone that is important in the development and maintenance of female secondary sex characteristics, such as breast development and body fat distribution. It also plays a key role in regulating the menstrual cycle by preparing the uterus for possible pregnancy.
Estrogen.
An activin is a peptide which participates in the regulation of the menstrual cycle.
The hormone responsible for directly regulating the menstrual or uterine cycle is estrogen. Estrogen is produced by the ovaries and plays a key role in the development and maturation of the female reproductive system, as well as the regulation of the menstrual cycle.
progesterone
The hormone that starts the menstrual cycle is follicle-stimulating hormone (FSH), which is released by the pituitary gland. FSH stimulates the growth of follicles in the ovaries, leading to the production of estrogen and eventually triggering ovulation.
Estrogen is the hormone primarily involved in the development of secondary sex characteristics in females. It plays a key role in breast development, widening of hips, and regulation of the menstrual cycle.
Testosterone is a hormone that does not have a direct role in the menstrual cycle. It is primarily involved in male reproductive processes such as the production of sperm and the development of male sexual characteristics.
i believe its Luteninizing hormone :) hope that helps