Six days before your missed period. Stix pregnancy tests are over 99% accurate and made with early detection technology, meaning they can detect pregnancy as early as six days before your missed period. However, for the most accurate results, take it on the first day of your missed period. If you have irregular periods or don't know when your period will be, test 19 days after sex or insemination for best results. Finally, we recommend testing first thing in the morning, before drinking any water, as that is when your urine is most concentrated.

Stix can detect hCG at 20mIU/hCG, or about 7 to 10 days after ovulation. For the best results though, we do recommend taking the test at least 6 days before your missed period or 19 days after you had sex.

Your levels of hCG increase every single day so the longer you wait to test, the stronger the results will be. If you were recently pregnant or are taking a drug that contains hCG (such as Pregnyl, Profasi, Pergonal, APL) you can get a false positive result. Alcohol, birth control pills, antibiotics, and painkillers will not affect results.

In general, read the instructions of any drugs you are taking. Some medical conditions, like ovarian cysts, can cause false positives.

When you get pregnant, your body starts to produce a hormone called human chorionic gonadotropin (hCG). Stix pregnancy tests detect hCG in your urine, determining if you are pregnant or not pregnant. Two lines on the pregnancy test means your urine tested positive for hCG and you are pregnant. Just one line means your urine tested negative for hCG and you are not pregnant.

1. Remove the purple cap from the test and pee on the absorbent strip of paper for 10 seconds. 
2. Put the purple cap back on the test.
3. Lay the test on a flat, non-absorbent surface with the result window facing up.
4. Wait for five minutes.
5. Breathe, then read the results.
6. One line means you are not pregnant, two lines means you are pregnant.
7. Do not read the results after 10 minutes.

Ovulation tests predict when you are ovulating — AKA  when you're most fertile, or when your ovaries release an egg and you’re most likely to get pregnant. This test measures for high levels of luteinizing hormone (LH) in your pee. LH is a hormone that surges 24-48 hours before you ovulate. You’re the most fertile on the day of the LH surge and the day after.

Stix ovulation tests are over 99% accurate with FDA-cleared, OBGYN-approved technology.

1. Think of your usual cycle length, AKA the number of days from the first day of your last period to the first day of your next period (period tracking apps are a great way to get this info).
2. Based on this number, refer to the chart in the instructions to determine your best day to test. For example, if the first day of your last period was the 1st and your cycle is usually 28 days long, you should start testing on the 12th. Check out this article for more info!
3. When it's time to test (we recommend sometime between 10am- 8pm), remove the purple cap, and pee on the absorbent strip of paper for 5 seconds. Make sure the strip is pointing downwards!