When to do or take the pregnancy test calculator

First day of your last period:
Your average menstrual cycle length:
Ovulation Day:
IVF Transfer Day: AND Embryo Day:
Implantation Day:
The blood test can be positive as early as:
The early urine home pregnancy test will be positive as early as
  • How long after implentation can I test? How many days must I wait?

When should you take the pregnancy test?

When is the best time to take a pregnancy test, how soon can I take it, and when does it become positive are among important questions to ask when trying to conceive. A pregnancy test, no matter if it's blood or urine, only becomes positive after implantation when the fetus has attached to the uterine wall and connects with the mother's blood system. Implantation, when the fertilized egg implants into the endometrium, happens about 9 days after ovulation and fertilization (range: 6-12 days). The blood pregnancy test will be positive before the urine pregnancy test. The blood pregnancy test will be positive 2-3 days after implantation and the urine test will be positive several days after the blood test has become positive.

The best time to take the pregnancy test

The best time to take an at home test is first thing in the morning and with first morning urine because that's when the urine is most concentrated and has the highest level of the pregnancy hormone hCG. Try not to get up and go to the bathroom during the night and then do the test as soon as you get up. A blood pregnancy test is usually positive several days before the mised period. A urine pregnancy test is usuall positive 1-2 days before or after you miss your menstrual period bleeding. 

Already expecting? Try our scientifically-verified Pregnancy Calculator instead.

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