Approximately when does ovulation occur?

Day 14: On average with a 28 days cycle, ovulation occurs on day # 14 from the first day of your cycle. In a female with shorter or longer periods than 28 days, ovulation can occur earlier or later. A good way to find out is to use an ovulation kit sold in the health stores. During ovulation your body temperature is 1-2 degrees higher. This is one way of knowing if ovulation is happening.