Can a ectopic pregnancy be detected if menstruation lasts more than four days?

Patient's question:

Hello, can an ectopic pregnancy be detected if the menstrual cycle is less than four days?

Doctor's answer:

Generally, a delayed menstrual period is normal if it does not exceed one week. If there has been sexual intercourse during this period, pregnancy is also a possible cause. It is recommended that you test again in a few days for more accurate results.
A positive result on a test strip is indicated by two red lines. However, this does not rule out ectopic pregnancy, which cannot be detected by a test strip. A thorough evaluation and diagnosis should be based on an ultrasound examination, combined with blood hCG and progesterone tests.
I hope this explanation helps you!

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