i got on yaz about 2 wks ago but only took it for 6 days. on day 1 and 3 me and my boyfriend had unprotected sex and he didnt pull out or use a condom. 4 days after i stoped taking yaz i started bleeding pretty heavy, like i started my period, but there was clear stuff too. I just stoped bleeding today but i have been cramping, have lower back pains, and slight breast tenderness. Could i be pregnate or had a miscarrige??