HELLO! Jus fount out im 6 weeks pregnant! First baby! First time ever being pregnant. I have irregular periods and thought I had fertility issues, but to my suprise I am pregnant at age 20! Does anyone know if women with irregular periods have a higher risk of miscarriage? How can I assure I have a healthy pregnancy. I am over weight but will no heath issues like high blood pressure or diabetes etc. But can being over weight cause miscarriage?