I've been told to inject Fragmin every day up to 12 weeks to 'thin my blood'. When I asked why, the nurse said because of my early miscarriage three yrs ago. Im injecting every day but bit reluctant to take this as surely my uterus lining needs thickening to support the two embryos? She didnt seem to think my blood was particularly sticky! On some medical websites it says Fragmin shouldn't be taken in pregnancy but my hosp says I should just as a precaution. Unsure what's best.