Although several hormones are produced throughout the menstrual cycle and their levels fluctuate throughout the cycle. The levels of FSH, LH and estrogen reach their peak at what day of the menstrual cycle? (See image)
Progesterone levels peak on day 21.
FSH, LH and estrogen levels peak at around day 14, thats ovulation time. Remember the highest surge is seen in LH which is why LH is primarily responsible for ovulation.