Many early signs of pregnancy can be nonspecific and easily mistaken for other causes. For this reason, it may be difficult to know when or whether to take a pregnancy test.
In this article, we list 11 early signs that can indicate a person should take a pregnancy test.
A pregnancy test will not show positive as soon as a person becomes pregnant. It takes time for the body to release enough of the hormone human chorionic gonadotropin (hCG) to show up on a test. This will be around
Some medical bodies suggest taking the test on the first day a period should have occurred. However, the Food and Drug Administration (FDA) notes that the results on this day may not be accurate for
Another option is to wait at least 21 days after having sex without birth control.
Blood tests take place in a medical office, and they can show if a person is pregnant around
If a person is pregnant, it is best to find out as soon as possible. Not only can they start planning the next steps, but there may also be health considerations and lifestyle changes to address.
Some people notice early signs of pregnancy, such as fatigue or breast tenderness,
The early signs include:
- a missed period
- breast changes
- light bleeding
- nausea and vomiting
- food aversions or cravings
- changes in bathroom habits
- mood changes
- missed birth control
1. Missed period
There are many reasons for missed periods, but if a person is sexually active, a missed period can signal pregnancy.
Most pregnancy tests are very accurate when taken after a missed period, but sometimes the hormone levels might not be high enough to trigger a positive result.
If someone misses a period and a pregnancy test is negative, they should repeat the test after a few days.
2. Breast changes
Breast changes are common in early pregnancy. These are due to hormonal changes that eventually prepare the body for lactation.
Common changes are:
- breast tenderness
- swollen breasts
- the nipples and areolas becoming larger or slightly darker
3. Light bleeding
Implantation bleeding tends to be lighter and shorter than a menstrual period.
Implantation bleeding happens around
Cramps are common before or during a menstrual period, but some people also get cramps when implantation occurs.
If cramps occur around or before a period is due, but there is no bleeding, or the bleeding is much lighter than usual, it may be a good idea to take a pregnancy test.
5. Nausea and vomiting
Nausea does not just happen in the morning. It may occur at any time during the day or night.
If nausea happens for no apparent reason, especially with other possible signs of pregnancy, it may be a good idea to take a pregnancy test.
It is typically due to changes in the hormone progesterone.
Fatigue typically eases in the second trimester, and the person may find they have more energy again.
A person can take paracetamol for a short time to treat a headache, but it is best to check with a doctor or midwife first. Other pain relief drugs may not be safe to take.
From week 20 of pregnancy and after, headaches can be a sign of preeclampsia, a potentially life threatening condition that needs urgent medical attention.
8. Food aversions or cravings
Unusual cravings and food aversions are common in the first trimester, though they sometimes persist through the entire pregnancy.
Some people crave nonfood items, such as dirt or ice. This is known as pica. Anyone who craves things that are not food should consult a healthcare professional.
A person may also find they no longer enjoy foods they previously enjoyed or that their taste and smell become more sensitive.
9. Changes in bathroom habits
Bowel and bladder symptoms can appear in early pregnancy. A person might experience frequent urges to urinate during the day and night. They may also have constipation, which affects
In the early stages of pregnancy, the rise in hCG levels
10. Feeling “different” and mood changes
Anecdotal evidence suggests many pregnant people report feeling “different” early in pregnancy, with some feeling an awareness that they are pregnant before taking a test. However, there is no scientific evidence to confirm this.
Physiological and hormonal changes during pregnancy may cause a person to feel different. Feeling different may also be due to mood changes, which can begin within a
Anyone who believes that they may be pregnant should take a test for confirmation.
11. Missed birth control
A person should consider taking a pregnancy test if they are sexually active and have not used birth control within the last month.
Many birth control options
Pregnancy tests work by detecting the hormone hCG, which the body starts producing after conception. According to 2014 research, hCG is detectable in the blood around
Tests for home use are urine tests. A person will need to go to a healthcare facility for a blood test.
A range of pregnancy tests are available for home use, and some are more sensitive than others. This means they can detect hCG at lower levels.
Many tests claim to be 99% accurate, but experts note that not all of them undergo rigorous scientific testing. A person may also get a false-negative result if they take the test too early, do not follow the instructions precisely, or do not handle the test as the manufacturer intended.
When taking a test, a person should:
- read the instructions carefully
- ensure they handle the test as advised
- try to avoid taking the test too early
Some people experience menstrual irregularities, breast changes, and other pregnancy-type symptoms without being pregnant. These can happen for a variety of reasons.
Possible biological factors include hormonal changes due to another health condition. Psychological and social factors can sometimes play a role.
In rare cases, a person can have pseudocyesis, sometimes called false pregnancy, where they firmly believe themselves to be pregnant and have signs of pregnancy without being pregnant. This condition is not well understood and
Anyone who has signs of pregnancy but is unlikely to be pregnant, for example, because of menopause, should seek medical advice. They may have a health condition that needs medical treatment.
If a pregnancy test result is positive, a person should contact a midwife or doctor. They can confirm the result with a blood test or schedule an early ultrasound.
If the person is pregnant, they should start prenatal care or discuss other options as early as possible.
If a person misses a period but is not pregnant, a healthcare professional can help diagnose any underlying cause.
The earliest sign of pregnancy is often a missed period, but breast changes, fatigue, headaches, and other changes can also appear within the first few weeks.
Anyone who has had sex without birth control and experiences early signs of pregnancy should do a test.
Anyone who has signs of pregnancy but is sure they cannot be pregnant should seek medical advice. The healthcare professional may wish to rule out other health conditions or provide treatment if required.