That means if you have a 28-day menstrual cycle, you can test around days 22–23, which is 8–9 days past ovulation if you're pregnant (FDA, 2018). However, there is a trade-off to testing early. When performed early, some home pregnancy tests claim to be around 70% accurate (Clearblue, 2022).

Once you receive a positive test (see what it looks like here), you can expect ovulation to take place within 24 to 36 hours. After ovulation, LH then decreases to its baseline. It's important to note that ovulation timings can vary among women.

Flashing smiley – High Fertility If the user has intercourse today she will increase her chance of getting pregnant, but she must also test again the following day.

The results can be read at any time between 3 and 10 minutes after performing the test. Discard the test after 10 minutes. READING THE RESULTS Look at the Result Window and compare the Surge Line to the Reference Line. The line next to the arrow is the 'Surge Line' which indicates the level of LH in your urine.

The ovulation stick shows a clear smiley face on the digital display when your LH surge has been detected, so you know that today and tomorrow are your best 2 days when you're trying for a baby.

If the test indicates that you're ovulating, your ovary should release an egg within 1 – 3 days after a positive ovulation test. Then it is immediately ready for fertilization. You can have sex with your partner two days after getting a positive ovulation test.

There is a high chance of becoming pregnant if a person has sex within 12–24 hours after ovulation. A person can conceive at any time, but especially if they have sex from 5 days before until 1 day after ovulation. Ovulation occurs when one of the ovaries releases a mature egg.

A circle means very low/no chance of conception on that day, a flashing smiley face means high fertility and a fixed smiley face means you're at peak fertility and your most fertile. The face stays on the reader for 48 hours so you have 48 hours to really go for it.

Most women will have 2 days of flashing smiley faces before the peak fertility is reached. Peak fertility is a smiley face. Once peak is reached, the meter shows the result for 48 hours, which is a reminder to you that your best chance to conceive is the next 48 hours.

If conception is your goal, try to have sex with your partner a few times during this period to maximize your chances of getting pregnant. Even though you can still technically get pregnant anytime during the month, your highest chances of conceiving will be in these two to three days following your positive OPK test.

If LH levels are elevated, the test will reveal either a line, happy face, or the word “yes”. This indicates that your LH levels are considered “surging” and that ovulation is likely to occur within the next 24-36 hours.

Positive: In short, if the test line (T) on the ovulation test stick is as dark or darker than the control line (C), it is a positive test. This means you are in your fertile window, and you'll likely ovulate within 36 hours.