When Do Women Ovulate?

Ovulation is when the body releases an egg from an ovary. It occurs once a month for women with a regular menstrual cycle.

It’s a critical point in the reproductive process, especially for couples trying to conceive or avoid conceiving. Knowing approximately when ovulation will occur provides valuable information.

This article covers ovulation, including when it typically occurs and how to know when you’re ovulating.

OVULATION OVERVIEW

Ovulation occurs automatically each month. Most women aren’t aware it’s happening.

Typically, the body alternates between the two ovaries when releasing eggs. One month, the right ovary releases an egg, and the next, the left ovary releases one. Usually, just one egg is released per cycle. (If two or more are released and fertilized, the babies are what’s called fraternal siblings.)

THE MENSTRUAL CYCLE AND OVULATION TIMING

The menstrual cycle is approximately 28 days. Some people have shorter or longer cycles, but 28 days is the average.

Ovulation typically occurs 14 to 16 days before the start of the next menstrual period. That’s generally true, even for people with longer or shorter cycles.

The egg survives for 12 to 24 hours. If it isn’t fertilized within that window, the body reabsorbs it.

TIMING PLUS TELLTALE SIGNS: HOW TO KNOW WHEN YOU’RE OVULATING

Most people find that the best way to determine when they’re ovulating involves a combination of timing and physical signs. When they are 14 to 16 days from the expected start of their next period, the following signs provide more evidence that they are ovulating:

• Spotting
• Vaginal discharge
• Cervical mucus changes
• Increased sex drive
• Breast swelling/tenderness

For couples trying to conceive, having sex regularly, from three or four days before ovulation to one day after, increases the odds of getting pregnant.

On the flip side, some couples use their knowledge of ovulation time to avoid getting pregnant. However, it’s important to understand that the “rhythm method” comes with a significant risk of unintended pregnancy, as ovulation timing can change unexpectedly.

USING TECHNOLOGY TO TRACK AND DETECT OVULATION

Another way to track and anticipate ovulation is using tools and apps. For example, ovulation predictor kits detect increases in luteinizing hormone in urine, which typically occurs 24 to 36 hours before ovulation. Fertility monitors measure the levels of multiple hormones, including luteinizing hormone, estrogen and progesterone, to predict fertile days.

Basal body temperature thermometers are specialized digital tools that measure your temperature with high accuracy. They can connect to apps that help you identify the slight rise in temperature that occurs after ovulation.

So, there are many ways to determine when you’re ovulating, whether from timing and signs to technology.

LEARN MORE ABOUT OVULATION TIMING FROM BAPTIST HEALTH

Knowing when your ovaries are releasing eggs can be important for multiple reasons. If you have questions about ovulation generally or ovulation timing specifically, your healthcare provider can answer them.

Don’t have a Baptist Health provider? You can find one using our online directory.

Next Steps and Helpful Resources

Learn More About Women's Care at Baptist Health
How to Use an Ovulation Test
Types of Fertility Treatments
How to Increase the Chances of Getting Pregnant