What Are The Chances That I May Have A Miscarriage?

hi.this is suchi from hyderabad,india.i am pcod patient,got married 7 months ago,started taking medicines adviced by my gynac and pregnant by 4 weeks now.i have a doubt.we had intercourse today.i dont have an idea whether intercourse during pregnancy in pcod patients cause a miscarriage.we did not have any hard strokes.it was really smooth.one of my friends told me about this problem. i am really scared whether i am going to have any miscarriage.please do suggest me.