What Are The Chances Of Becoming Pregnant When You Have Sex on the Day you Ovulate?

Defining Ovulation

Ovulation is the process by which a mature, single egg is released from a follicle that had developed in the ovary. The luteal phase determines the time of ovulation within your menstrual cycle, generally lasting approximately 12 to 16 days.

The process of ovulation is something that occurs rather regularly, typically happening around day 14 of a normal 28-day menstrual cycle. A short window of 12 to 48 hours marks the time in which an egg can be fertilized after being released from the ovary. During this time, you are most fertile and therefore, the likelihood of becoming pregnant is much higher.

Why is Ovulation the Best Time to Try to Get Pregnant?

It’s important to note that after puberty, a girl can become pregnant at any time. There are even a handful of women who become pregnant while on their period, however this is rather rare. Typically, the most fertile time of the month will begin four to five days before ovulation and ends anywhere from 24 to 48 hours after ovulation has occurred. These numbers are figured from the fact that sperm are able to survive within the body for four to five days and eggs can live for 24 to 48 hours following their release. Because the egg’s lifespan is short-lived, it is imperative to attempt conception during this time.

If you choose to have intercourse directly before or on the day on which ovulation begins, it is important to note that the sperm can live within your reproductive system. This means that sperm will still be available after ovulation, putting them in direct contact with the egg. As you might suspect, this greatly enhances your chances of becoming pregnant. Additionally, you can see from these figures that conception will most likely occur the day before and the day of ovulation.

Having intercourse extremely close to the time of ovulation means that you will greatly enhance your chances of becoming pregnant. In fertile couples that experience regular cycles, there is a 25 percent chance of becoming pregnant during each period. This means that 75 to 85 percent of women will become pregnant within one year if they are having intercourse without using protection, such as birth control. Of course, this makes knowing your fertile days even more important. Additionally, taking note of cyclic hormonal and physical changes that occur regularly with your menstrual cycle is imperative as this too can help increase your chances of becoming pregnant.

How do I Know When I’m Going to Ovulate?

Ovulation comes with many physical signs, giving you a good idea as to when it will occur. Some physical signs that you might experience include:

  • Increased Amounts of Vaginal Discharge
  • Breast Tenderness
  • Discomfort in the Lower Abdomen – There are approximately 20 percent of women who will experience discomfort or pain in the lower abdomen while the egg is leaving the ovary. This condition is known as “mittelschmerz” at can last anywhere from a few minutes to several hours.
  • Changes in Cervical Mucus – Before ovulation, cervical mucus is generally cloudy and thick in nature. However, right before ovulation, it will become clear, slippery, and stretchy in a state that resembles raw egg whites.
  • Basal Body Temperature Shifts – Right after ovulation, your body temperature can increase anywhere from 0.4 to 1.0 degrees Fahrenheit.
  • sky

    What happens if you have sex one day before ovulation?

  • http://www.babyhopes.com/ Vickie B.

    You might get pregnant.

  • mimi

    anyone here?

  • http://www.babyhopes.com/ Vickie B.


  • alex

    What are the chances you’ll still have next period if you conceive during ovulation

  • http://www.babyhopes.com/ Vickie B.

    You wouldn’t really be having a period if you were pregnant. It would be considered early pregnancy bleeding. If you are pregnant and are experiencing any bleeding, you should see your doctor.

  • Stacy

    I had sex on my first fertile day. What are my chances of becoming pregnant

  • http://www.babyhopes.com/ Vickie B.

    It depends. No way to really tell if you were successful in getting pregnant though until you test at the end of the month, around the time your period is due.

  • Mel

    If we had sex again after he cummed on his hand what are the chance of me getting pregnant it was a day before ovulating

  • Tammy

    Im 2days past ovulation and experiencing pain on one side. And I have cloudy white discharge. My boyfriend and I had sex before and during ovulation.

  • http://www.babyhopes.com/ Vickie B.

    It’s possible, but not very likely.

  • http://www.babyhopes.com/ Vickie B.

    How do you know you ovulated? The pain you are feeling could actually be ovulation pain.

  • Tammy

    It’s been four days and I still feel the pain slightly. Im not sure im hoping.

  • http://www.babyhopes.com/ Vickie B.

    Well, if the pain is lingering like that you might want to visit your doctor to make sure everything is okay. Ovulation pain doesn’t typically last that long.

  • http://www.babyhopes.com/ Vickie B.

    Well, if the pain is lingering like that you might want to visit your doctor to make sure everything is okay. Ovulation pain doesn’t typically last that long.

  • Sana

    Hello iam over weigh how to get pargnet

  • yamilex

    if I had sex on February 12 and I used a calculator website that said I ovulated yesterday, but I have a period calendar that says I ovulate tomorrow which is February 17 , my last priod was on the 3rd of February is there a chance that I could be pregnant?

  • http://www.babyhopes.com/ Vickie B.

    You have a small of getting pregnant from sex on the 12th. Healthy sperm can survive up to 5 days (maximum) after ejaculation in your reproductive system. Your chances of getting pregnant are higher the closer to ovulation you have sex.

  • tbaby1896

    I had a period on January 30th and it last for 3 or 4 day On February 5th i had sex n on the 13th on ovulation day can i be pregnant?

  • http://www.babyhopes.com/ Vickie B.

    Not likely if you ovulated on the 13th. Sperm can only survive up to 5 days max in our system. It would have died by the time you ovulated.

  • Breezy

    Okay I had cum injected into me on my ovulation day, what’s the chance I’ll get pregnant?

  • http://www.babyhopes.com/ Vickie B.

    The possibility is there as you had sex when you were ovulating.

  • Mary

    This whole article is inaccurate. The birth CONTROL method I used before my daughter was completely based on you’re infertile AFTER you ovulate and you are most fertile the few days before ovulation and you should start being careful about sex at the end of your monthly period until after you ovulate. I know it works because I used it for years successfully before we decided to try for my daughter. And by using the same method to purposely have sex before I ovulated we were able to conceive the very first time we tried. You are not able to get pregnant at any time. You only have a short window every month and you NEED to have sex in the 3 days before ovulation for maximum possibility of conception. Afterwards is too late. Where do they even get this ridiculous information?

  • danielle

    According to my calendar I have I am supposed to be ovulating tomorrow I had sex last night and my boyfriend ejacualated inside me. What are my chances that I will be pregnant?

Last modified: April 15, 2014

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