Parsley tea abortion?! PLEASE HELP!!!

So my friend is a very healthy girl and loves parsley tea because of its health benefits. I've tried it and I instantly spit it out lol well I've heard that drinking parsley tea can cause a miscarriage. I few weeks ago my best friend found out she was pregnant (didn't tell me until now) and she didn't realize that parsley tea can cause miscarriages so she kept on with her normal drink and just yesterday her period came and it was a lot of blood, more than usual she said. She's freaking out because now she thinks it's her fault for the miscarriage. Is this true? Has anyone else heard of this? Or did he miscarriage just happen naturally?! Please help!