Patient's question:
First of all, thank you for answering my question.I don’t want to get pregnant, and I’m very worried about it now. Normally, my period should be over in another seven days, but it hasn’t arrived yet. This morning, a test showed a faint positive result, and I’m very concerned. I’m wondering if there’s any way to solve this without medication. I’m not even sure if I’m really pregnant. Is there any good method to confirm it? Thank you all.
Doctor's answer:
There are several methods, and I will introduce you to two commonly used ones. Test strips are now widely used and are generally quite accurate. It is best to use morning urine.Guidelines:
Basal Body Temperature Changes: In non-pregnant women, basal body temperature slightly increases after ovulation but does not last more than two weeks. If the temperature remains elevated for more than 20 days and accompanied by a missed period, it indicates pregnancy.
Method 1: Buy a thermometer
1. Before going to bed each night, shake the mercury column of the thermometer down to below 35°C and place it in an easily reachable place upon waking.
2. Every morning after waking up, immediately place the thermometer under your arm for 5 minutes, then remove it and record the reading.
3. Do not do anything before measuring your temperature, such as getting up, urinating, eating, or talking.
4. Record any factors that may affect basal body temperature, such as colds, insomnia, alcohol consumption, or medication.
5. For basal body temperature measurement, a regular thermometer is sufficient. The key is to master the correct measurement method.
6. It is best to measure at roughly the same time each day.
7. You should draw a table and connect the daily numbers with lines. The highest point will indicate your ovulation day.
Early Pregnancy Test Strip Detection: Starting from the 7th day of pregnancy, a specific hormone called human chorionic gonadotropin (HCG) can be detected in a pregnant woman’s urine. The urine pregnancy test conducted in hospitals typically measures this hormone. It has high sensitivity.
Under normal circumstances, there are two possible results for early pregnancy test strips:
1. If you apply urine to the test strip’s detection hole and a colored band appears in the control area (some strips turn red, others turn blue), it indicates a negative result. Conversely, if a clear band appears in the test area, it indicates a positive result, meaning pregnancy has occurred. This method is fast, convenient, sensitive, and highly specific, avoiding cross-reactions with other glycoprotein hormones similar to HCG.
However, women who self-test for early pregnancy must remember: Early pregnancy test strips can only serve as a preliminary screening test. When using them, pay attention to the following aspects:
1. If the test strips have been stored for too long (more than a year) or have been exposed to moisture and not kept in normal room temperature conditions (should not be refrigerated), they may become invalid and produce false-negative results.
2. After the third month of pregnancy, HCG levels decline, and urine tests may sometimes show negative or weak positive results.
Therefore, if a woman of childbearing age experiences a missed period, she should not rely solely on a single self-test with early pregnancy strips to determine if she is pregnant. For safety, it is advisable to test again after three days. Of course, the most reliable method is to undergo a comprehensive medical examination at the hospital, especially for those with weak positive results, so that appropriate measures can be taken.