If you’ve had unprotected sex and are wondering whether you could be pregnant, you’re not alone—and it’s completely normal to have questions. This guide will help you understand when and how to take a pregnancy test, what early signs to look for, and what to do next.
Pregnancy can be detected 10 to 14 days after unprotected sex using a home pregnancy test, as this is when the body produces enough human chorionic gonadotropin (hCG) hormone to be detected. However, the timing of testing can affect accuracy, and understanding how pregnancy tests work can help ensure reliable results.
What Is hCG and Early Pregnancy Detection?
After fertilization, the body starts producing the hCG hormone, also known as the pregnancy hormone. This hormone helps maintain the pregnancy and is what pregnancy tests detect—either through blood or urine.
- Blood tests can detect hCG levels as early as 6-8 days after fertilization, but they are usually done at a clinic or healthcare facility.
- Home pregnancy tests (urine tests) are most reliable 10-14 days after unprotected sex or around the first day of your missed period. Testing too early may result in a false negative due to low hCG levels.
Early Pregnancy Symptoms to Watch For
While waiting to take a pregnancy test, you might notice some early signs of pregnancy, such as:
- Missed period – One of the most common and earliest signs of pregnancy.
- Breast tenderness – Increased sensitivity and soreness due to hormonal changes.
- Fatigue – Feeling unusually tired due to rising progesterone levels.
- Nausea or vomiting (morning sickness) – Can start as early as two weeks after conception.
- Frequent urination – Increased blood flow to the kidneys results in more frequent trips to the bathroom.
- Light spotting or cramping – Known as implantation bleeding, it may occur around 6-12 days after ovulation.
These symptoms are not conclusive and can also be caused by other factors, so it’s still best to confirm with a pregnancy test.
How to Take a Pregnancy Test at Home (How-To)
- Wait until at least 10-14 days after unprotected sex for accurate results.
- Buy a reliable home pregnancy test from a pharmacy.
- Use your first morning urine for the highest hCG concentration.
- Follow the test kit instructions carefully.
- Wait for the results within the designated time frame specified by the test.
- If the test is positive, it may indicate pregnancy. If it’s negative but your period is still late, try testing again in a few days to be sure.
Factors That Affect Pregnancy Test Accuracy
- Testing too early – Low hCG levels may not be detectable yet.
- Diluted urine – Drinking excessive fluids before testing can lower hCG concentration.
- Expired or faulty tests – Always check the expiration date and ensure the test is properly stored.
- Certain medications – Fertility drugs or hormonal medications may affect test results.
Helpful Resources
- Emergency Contraceptive Pill Guide – Learn about your options after unprotected sex.
- Contraceptive Methods and Abortion – Understand your reproductive choices.
- Most Common Sexually Transmitted Infections – Know how to protect yourself.
Frequently Asked Questions (FAQ)
How many days after sex can pregnancy be detected?
You can detect pregnancy 10-14 days after unprotected sex using a home pregnancy test.
Can I take a pregnancy test a week after sex?
It might be too early. For accurate results, wait at least 10-14 days.
What hormone does a pregnancy test detect?
Pregnancy tests detect the hCG hormone, which the body produces after implantation.
What to Do If You’re Pregnant and Unsure of Your Options
If you receive a positive pregnancy test result and feel unsure about what to do next, you’re not alone—and support is available. Here’s what you can do:
- Confirm your pregnancy early – A blood test or ultrasound can confirm the viability and gestational age of the pregnancy. This is important for understanding your full range of options.
- Learn about available options – Depending on your situation, you may consider parenting, adoption, or abortion.
- Seek support – Confidential guidance is available from reproductive health organizations such as safe2choose.
- Act Promptly – If you’re considering abortion, it’s important to decide as soon as you can. Not only can abortion be legally restricted in some countries, but it’s also medically recommended within the first 13 weeks of pregnancy for safety and effectiveness. Make sure to check the abortion laws and guidelines in your country. In the Philippines, for instance, abortion is legally restricted, but you can still access accurate information and support through our Philippines country profile page.
Take Charge of Your Reproductive Health
If you think you might be pregnant or need support, safe2choose offers confidential information and guidance. Visit safe2choose.org to explore your options, learn more about contraception, and get non-judgmental support. Reliable reproductive health resources ensure that individuals can navigate their options with clarity and confidence.