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A 26-year-old female asked:

Misses period 15 days all test have been negative yes i have had unprotected sex in the last 3 wks is it possible i ovulated late and could be preg?

2 doctor answers3 doctors weighed in
Dr. Heidi Fowler
Psychiatry 25 years experience
Not likely pregnant: with neg HPT this far out. Reasons for missed / late period include: an anovulatory cycle in which no egg is released, marked v or ^ in weight; eating disorder; Over-exercising (endurance athletics), stress, travel, significant illnesses, oral contraceptives & other meds, Illegal drug use, breast feeding, hormone imbalances and medical problems (i.e., PCOS). Pregnancy is #1 reason.
Dr. Georgia Latham
Family Medicine 35 years experience
Very unlikely: Most urine pregnancy tests are very accurate, and if performed and interpreted correctly, tend to be positive within days after conception. If you remain unsure, do another test in 1 week if you still have not started a period. It is not unusual for a woman to be irregular, late, and/or miss a period occasionally for not apparent reason.

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Last updated Feb 4, 2017

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