I just micarried at 18 weeks while I was at home..it happened very fast, my water broke then 2 mins later I felt like I had to go #2 and when I pushed my baby boy came out and was still kicking. Four days before my miscarriage I went to the ER because I was bleeding heavily and having bad cramps but my pelvic exam and ultrasound came back perfect. My babies heart rate was 153 so the ER doc sent me home and told me it was ok. Does this type of thing happen often? And what could have possibly caused the miscarriage just 4 days after everything was checked and looked perfect?