Positive pregnancy test and now bleeding? PLEASE HELP!

Hello ladies i need your help. I got two positive pregnancy test but pretty faint i thought it was because it was too soon before my missed period or too early in the pregnancy. But today the day of the day my period is due i started bleeding!? I'm going to see if i keep bleeding or not but has anyone had this happen to them? i had a miscarriage my first pregnancy and my second one i went full term but also had bleeding with her in my first trimester but not on the day my periods were due! i had a urine test tomorrow that i just mite change to blood test?..PLease feel free to be very honest thank you!