Is it 100 chance of getting pregnant on ovulation day

Pregnancy happens when sperm enters a vagina, travels through the cervix and womb to the fallopian tube and fertilises an egg.

You’re more likely to get pregnant around the time you are ovulating. This is when an egg becomes ready and you are at your most fertile.

If you are under 40 and have regular sex without using contraception, there is an 8 in 10 chance you will get pregnant within 1 year.

How to increase your chances of getting pregnant

There are things you and your partner can do to increase the chances of getting pregnant.

Do

  • have sex every 2 to 3 days without using contraception – make sure sperm enters the vagina

  • try to have sex around the time you are ovulating – this is usually 12 to 16 days before your period starts

  • try to maintain a healthy weight, cut down or stop drinking alcohol and do not smoke – it can help if your partner does this too

Information:

If you’re trying to get pregnant it’s important to take folic acid every day, eat a healthy diet, and drink no more than 1 to 2 units of alcohol once or twice a week. This will help your baby develop healthily.

Non-urgent advice: See a GP if:

  • you have been trying to get pregnant for over 1 year
  • you have a long term condition such as diabetes and want advice about pregnancy
  • there is a risk of passing on a condition such as sickle cell disease to your baby
  • you regularly take medicines and want to get pregnant – some medicines can affect a pregnancy
  • you are aged 36 and over and want to get pregnant

Page last reviewed: 2 December 2020
Next review due: 2 December 2023

Get the real numbers on how likely you are to get pregnant at each month, at every age, and how to increase those odds.

When you’re trying to conceive, it can feel like everyone around you is getting pregnant without even trying. It can be heart-rending, but it’s important to know that most couples don’t get pregnant in one shot.

   

Is it 100 chance of getting pregnant on ovulation day
   
   How long does it take to get pregnant? According to Yolanda Kirkham, an OB-GYN at Women’s College Hospital and St. Joseph’s Health Centre in Toronto, your chances of conceiving each cycle you try are 25 to 30 percent if you’re under 35, eight to 15 percent if you’re 35 to 39, five percent if you’re 40 to 42 and one to two percent at age 43. Age affects not only fertility rates but also miscarriage rates, which go up from around 10 percent in your 20s to 15 percent after age 35 and up to 50 percent by age 45.

It’s worth tracking your ovulation to improve your odds: According to a 2003 study published in the journal Human Reproduction, when 346 women ages 20 to 44 timed their intercourse to help them conceive, they had a 38 percent chance of conceiving in one cycle, a 68 percent chance within three cycles, an 81 percent chance within six cycles and a 92 percent chance of getting pregnant within 12 cycles.

In general, Kirkham says 85 percent of women will get pregnant within one year of trying. But if you have been trying for a year without conceiving and are under 35, she suggests that you seek a fertility consultation. If you’re 35 or older, you should seek help after just six months of trying because egg quality declines and medical conditions become more prevalent as we age, so the likelihood that you may need some fertility help is higher.

Still, this doesn’t mean you need to look at other fertility options at this point, says Kirkham. “It’s just to see if your intercourse timing is correct and if there are other factors that need to be looked at,” she says. Those factors could include your hormones and the quality of your partner’s sperm.

How do you know if your timing is right? You can find out when you ovulate by counting 14 days back from when you get your period or looking for other signs of ovulation, such as an egg-white-like mucus. Kirkham recommends having intercourse every other day in the time leading up to ovulation. Since sperm can survive for about three days, this will help ensure that there is sperm at the ready when your egg is released.

While it’s helpful to know these stats so that you’ll recognize when it’s time to seek help, Kirkham says it’s important to not get too hung up on the numbers. “We aren’t robots,” she says.

Every woman or couple has their own individual risk factors that can affect their probability of conceiving, and a healthcare provider can help sort out what those might be and what can be done about them. Even if you are among the 12 to 16 percent of Canadians who don’t get pregnant within the first year, meeting with a doctor to test for specific problems and explore other fertility options can increase your chances of having a baby.

Read more:
Can you boost your fertility?

Trying to conceive: Myths vs. facts