Light Bleeding Before Period: Pregnancy or Other Causes?

Lighter bleeding the day before your expected period is not a reliable indicator of pregnancy. It could be a sign of implantation bleeding, which happens when the fertilized egg implants in the lining of the uterus. However, it can also be a sign of other conditions, such as hormonal imbalances or a miscarriage. It's important to talk to your doctor or take a pregnancy test to determine if you are pregnant.