The following are useful statistics on the effect of age on the chance of getting pregnant each cycle:. You can learn to recognize its changes so as to predict fertile and unfertile days. Timing of sex is almost everything when it comes to fertilizing an egg each menstrual cycle. Perhaps you choose to have sex without a condom but you don't want to get pregnant. The menstrual cycle is the time from the first day of your period to the first day of your next period; for most women, that is about 28 days.
You can notice that your mucus will be different at every stage.
When Not to Have Sex
Using caps or condoms is better to prevent pregnancy when you are not sure about your safe days. This is the time of the month when you're most likely to get pregnant. To predict your first fertile day: The body temperature remains high for the remaining part of the cycle. A woman can ovulate ANY time in her cycle.