Canada Pharmacy answers questions about pregnancy tests
The test may fail to detect human chorionic gonadotropin (hCG) even when a woman is pregnant if the test is done too early
. It takes at least 7 days after fertilization for the test to become positive. In most cases, by the time a woman has missed her period, the test will be positive if she is pregnant. Reference:Babyhopes.com
Canada Pharmacy answers questions about pregnancy tests