Just found out I'm pregnant and I've been advised to use blood thinning injections as a ell as aspirin this pregnancy due to history of severe very early preeclampsia. Has anyone taken them for this purpose? The consultant says there's no real evidence it works but in my case it wouldn't hurt. I will definitely be taking them. Any tips on how to avoid bruising? I took them for 10 days in a row and hated them! I have a high pain threshold but they really bother me.