Is it a certainty that one day red and one light-colored period mean pregnancy?

Patient's question:

No

Doctor's answer:

According to your description, the early pregnancy test is weak positive, which can also be said to indicate pregnancy. However, continuing to test can confirm the pregnancy. The duration of pregnancy is calculated from the last menstrual period. As of today, it has been 32 days since the last period, but it is impossible to determine the exact day of conception. I hope this helps you. Wishing you health and happiness.