Pregnancy Symptoms
Pregnancy Tests
Periods while Pregnant

I want to know when i should take a pregnant test?

User Avatar
Wiki User
November 08, 2005 11:38AM

You start counting the weeks from the first day of your last period. So if you miss a period you count it as 4 weeks even though you only conceived 2 weeks before. This is because in the old days women didn't know when they conceived and had no tests or anything so could only count from the monthly period. Term is now counted as 37-40 completed weeks from the last period.