The "most sensitive" drugstore tests can detect pregnancy as early as three or four weeks after your period date, Tang says. In those first few weeks, pregnancy hormones are on the rise every day.

How early can you take a pregnancy test? The "most sensitive" drugstore tests can detect pregnancy as early as three or four weeks after your missing period date, Tang says.

The cervix changes in early pregnancy and throughout the menstrual cycle. Here's how to check your cervix for pregnancy.

While implantation bleeding and a period may appear the same from afar there are distinct differences in terms of timing ...