Just a quick question about using Clexane during pregnancy. I have family hx of DVT and fatal PEs. Apparenty I have some sort of "clotting disorder" but they have no idea what. I had numerous blod tests etc. I had a DVT and small PE last year and was on clexane and warfarin and am now only on aspirin 100mg SID. I am now 5wks pregnant with our 2nd baby. I know I have to go on clexane during the pregnancy as a prevention. Do you know when I need to start taking the clexane? I`ve heard its a 10 weeks but in the meantime I`m waiting about 4 weeks just to see my doctor and haematoligist so I`m a bit concerned I might beleaving it a bit late.