![]() The urine test offered is very similar to a home pregnancy test, but the results tend to be more accurate due to reduced error. Healthcare providers often offer both urine tests and blood tests for hCG. If you do a home pregnancy test and get a negative result - but you still don’t get your period one week later - then it’s a good idea to follow-up with another test. These tests often give a negative result if the test is done too early after a missed period. The “pee on a stick” type of home test measures whether your hCG passes a threshold amount, and gives you a positive or negative answer. ectopic) pregnancy or early miscarriage (2). The concentration of hCG doubles every 29 to 53 hours during the first 30 days after implantation of a viable, intrauterine pregnancy a slower rise in concentration of hCG is suggestive of an abnormal (e.g. The main hormone you are testing for is human chorionic gonadotropin (hCG) , which is detectable in blood or urine. ) What’s the difference between home pregnancy tests and the tests at a doctor’s office? (Remember, any form of unprotected sex at any time represents a risk of sexually transmitted infections. If you are using an active form of natural birth control (aka fertility awareness based methods, or natural family planning) or are tracking fertility signs for body literacy, you will have a better idea of your timing of ovulation and can use that to assess your risk of pregnancy. You can take a pregnancy test about two weeks after your last unprotected sexual encounter, though waiting a few days longer will help improve the accuracy of the results. ![]() If you don’t know when your period is going to come, and the difference between your longest cycle and shortest cycle is more than 7–9 days -that is, if the timing your period is highly variable - then unprotected sex or exposure of sperm on your genitals at most times represents a higher risk because it’s harder to estimate when you were exposed. It’s up to you if you want to take it sooner. To avoid a false negative, it’s best to wait a few days after your expected period. If your cycle tends to be quite "regular" and you want to take a pregnancy test sooner, it’s generally recommended you wait at least two weeks after your estimated ovulation day, or around when you expect to get your period. Some pregnancy tests advertise that you can take them earlier than that, but there can be a higher likelihood of a false negative (1).
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