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A 18-year-old female asked:

Took blood test approx 4 weeks after intercourse or 3 weeks after missed period. it came back neg. heard ectopic pregnancy produce delay in b-hcg harmone. i missed periods this month too. did i take blood test too soon ?

2 doctor answers3 doctors weighed in
Dr. Hiep Le
Dr. Hiep Leanswered
Nephrology and Dialysis 42 years experience
Ectopic pregnancy is not the reason for a lower beta HCG. You are probably not pregnant.
Dr. Gurmukh Singh
Pathology 49 years experience
A negative blood test for HCG, 3 weeks after missed period = not pregnant, not even ectopic. If you do not wish to be pregnant, use contraception all the time, every time. Consider implanted contraceptive, or IUD. Practice safe sex. https://www.hopkinsmedicine.org/health/wellness-and-prevention/safer-sex-guidelines Get HPV vaccine,

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Last updated Apr 24, 2021
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