A member asked:

I took 3 home pregnancy tests with a week in between each of them. all of them came out negative. what is the accuracy of the result?

3 doctors weighed in across 2 answers
Dr. Yvette Kratzberg answered

Specializes in Pediatrics

Week 5: A pregnancy test will be positive as soon as the first day of your missed period. For accurate testing, the first morning urine should be used. You can repeat the test with a different brand if you want to double check. The initial signs of pregnancy are breast tenderness and enlargement, nausea and dizziness. The test measures hCG which is a hormone that is produced by the placenta.

Answered 6/18/2020

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See below: Conception occurs within day or so of the sex. It takes about 3 weeks for the embryo to make enough HCG for a positive pregnancy test. Blood test may be done a day after a missed period. Home pregnancy tests should be done 4-5 days after the missed period. If the result is negative repeat the test in 4-5 days. Use first morning urine and follow instructions for the test carefully.

Answered 6/19/2020

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