I got 3 positive results of pregnancy and was happy but suddenly in my 5th week got some bleeding!!!howcome i m confused please help?

Placental bleeding: it is not uncommon for the placental implantation site to have some bleeding, also known as a subchorionic hemorrhage. Some pregnancies well persist despite this finding, but you would need ultrasound diagnosis and follow up. this is not an emergency because there is not much that can be done at this point, except for rest and observation. make an appointment with your OB.