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Trying for a baby — myths and realities

Myth: It's possible to get pregnant at any time of the month.

Reality: To get pregnant, you need to have sex on the days leading up to and around when you ovulate. Two to three days prior to ovulation and the day of ovulation are your most fertile days.

Myth: Every woman ovulates on Day 14.

Reality: Many don't. Normal ovulation can occur as early as Day 10 and as late as Day 20 (or even later). Many women think that they ovulate on Day 14, but this isn't always the case. Your day of ovulation will vary depending on your cycle length. It is normal to have occasional cycles when you don't ovulate (anovulatory cycles). You won't be able to get pregnant in a cycle where you don't ovulate. Occasional anovulatory cycles are normally nothing to worry about but this article contains more information on the frequency and causes of anovulation if you would like to learn more.

Myth: You'll get pregnant quickly if you track your temperature.

Reality: Tracking your basal body temperature can be helpful. However, a woman's body temperature rises after she has ovulated. If you have intercourse after your temperature rises, you will be too late to optimise the chances of conception in that cycle. Scientific studies1 suggest that the methods which identify your most fertile days in advance, such as ovulation tests, fertility monitors and fertility charting of cervical mucus, are likely to be more effective for optimally timing intercourse than calendar or temperature methods.

Myth: Ovulation Tests cause stress

Reality: A recent study2 found that using digital ovulation tests is no more stressful than trying to conceive without them. In this study 77% more women got pregnant in the group that was using the tests than those simply having regular intercourse. In addition, 100% of these women found the digital ovulation tests easy to use and understand.

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1In the first 2 cycles of use. Robinson, JE, et al. Fertility & sterility (2007) 87:329-334.

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Find out when you're most fertile

The days leading up to ovulation and the day of ovulation itself are your most fertile – this is when you are most likely to get pregnant.

Ovulation is the release of an egg from your ovaries, which happens once in every menstrual cycle and is triggered by hormone changes. A rise in the level of estrogen begins a few days before ovulation, this eventually causes a sudden surge in luteinising hormone (LH) that triggers the release of the egg, ovulation, 24-36 hrs later. This usually happens 12 to 16 days before your next period starts. The egg can be fertilised for up to 24 hours after ovulation.

While an egg is only viable for about 24 hours, sperm can remain active for up to 5 days. It may therefore be surprising to learn that a couple can conceive through sexual intercourse 4 to 5 days before the egg is released.

If the egg isn't fertilised, the lining of the womb is shed and your period begins.
This marks the start of the next cycle. If the egg has been fertilised, it may successfully
implant itself into the womb lining. This usually takes place about a week
after fertilisation.

Getting pregnant can all depend on timing. If you want to find out when you are most likely to be fertile, it's important to get to know your own body and your menstrual cycle.

Find your most fertile days of the month

Using a Clearblue Digital Ovulation Test with Dual Hormone Indicator, a Clearblue Digital Ovulation Test or Clearblue Ovulation Test?

Just answer the two questions below to find out when you should start testing. If you don't know your cycle length, try waiting for your next cycle and note the day your period starts (Day 1) and the length of this cycle before using this online tool.

When was the first day of your last period? (optional)

How long is your average cycle? (required)

The length of your cycle is the number of days from the day your period starts (Day 1) to the day before your next period starts. If your cycle length varies by more than 3 days every month, then choose the shortest cycle you have had over the last 6 months.

You should start testing on Day [XX] of your next cycle.

Count the first day of your period as Day 1.

  1. Stanford JB., et al. Obstetrics & Gynaecology (2002) 100(6):1333-41
  2. Tiplady S., et al. Human Reproduction (2013) 28(1): 138-151. 210 women across 2 menstrual cycles. Not statistically significant for conception rates.

For information purposes only. Consult a doctor for medical advice.

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1In the first 2 cycles of use. Robinson, JE, et.al. Fertility & sterility (2007) 87:329-334.

Did you know?

Ask the Clearblue expert

Q.

How do I calculate the length of my menstrual cycle?

A.

To work out your cycle length, count the day your period starts (first day of full menstrual flow) as Day 1, and continue counting through to the day before your next period starts. The number of days is your cycle length.

Clearblue Ovulation Tests help you get pregnant naturally

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Clearblue Advanced Fertility Monitor

Proven to increase the chances of getting pregnant naturally by 89%1

Buy now

1In the first 2 cycles of use. Robinson, JE, et.al. Fertility (2007) 87:329-334.

Did you know?

A healthy lifestyle may help you conceive. Being either overweight or underweight may cause difficulties when getting pregnant.

Learn more

Maximise your chances of pregnancy

Clearblue Digital Ovulation Test with Dual Hormone Indicator helps you pinpoint your most fertile days.

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Did you know?

Your partner's testes are at their best when they are relatively cool. So wearing loose underwear and light trousers and avoiding hot baths can help improve his sperm production.

Ask a Clearblue expert:

Q.

My cycles never seem to be the same length, is that normal?

A.

Many women quite naturally have a menstrual cycle that varies by a few days month to month. If you are trying for a baby, accurately identifying your wider fertility window can be an advantage. A fertility monitor will tell you the days of high fertility and peak fertility with a wider window of opportunity during which there's a chance to conceive.

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*In the first 2 cycles of use. Robinson JE, et al. Fertility & sterility (2007) 87: 329-334.

Q.

Do I need to wait several days after I have missed a period before doing a Clearblue Pregnancy Test?

A.

No. All Clearblue Pregnancy Tests are sensitive enough to detect hCG in your urine from the day your period is due. You can use Clearblue Pregnancy Tests up to 4 days before your period is due, although the pregnancy hormone levels in your urine may not be high enough to be detected. So if you test early and you get a "Not Pregnant" test result, it's recommended that you test again when your period is due. All Clearblue Pregnancy Tests are over 99% accurate, when testing from the day the period is due.

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