My period is a week late, and I've taken tests with test strips, all of which are negative.

Patient's question:

I haven't had my period for a week, and it was very regular for the past two months. My boyfriend always used a condom when we had sex, and I took a pregnancy test which came back negative. Am I pregnant? Thank you

Doctor's answer:

The menstrual cycle of women is generally 28 to 30 days. It is still within the normal range if it is advanced or delayed by about 7 days. The length of the cycle varies from person to person. However, if menstruation has not arrived after more than 7 days, it is considered delayed menstruation. The main reasons to consider for delayed menstruation are primarily pregnancy, followed by menstrual disorders.