I was on lovenox for recurrent blight ovums. My first 2 successful pregnancies were fine...on lovenox for 34 weeks. My next pregnancy I had a SCH and miscarried at 7 weeks....normal emby. My next pregnancy had a sch at 6 weeks...it resolved and I am now 32 weeks pregnant on no blood thinners. Most have no issues but once you have a SCH you are at an increased risk for one in future pregnancies.