Ok, so I got my BFP this morning and will see my GP in the next few days. I have Hughes Syndrome, a clotting/autoimmune disorder, which means I need cleaned in pregnancy due to the risk of clots.
In my last pregnancy I lived somewhere else and the haematologist there wanted me on 75mg aspirin whilst TTC and clexane from my BFP. This was successful and DD is now 18 months.
I have seen the haematologist where I live now and she said the procedure here is that I will be referred to the midwife by my GP, the midwife will then refer me to the joint obstetric/haematology clinic for booking at 7-8 weeks, where they will scan me and if the pregnancy is viable they will start me on aspirin and clexane.
I can't help but worry as this is different to what was successful for me before and I am not sure I have faith in the haematologist I have seen here as she initially said I didn't need anti coagulation for life, despite previous clots in my lungs and also told me I didn't need anticoagulation for a long haul flight, as flights were low risk anyway. Then last time I saw her she said once I have had this baby I will need to go on warfarin for life, due to my blood results. 
I told the haematologist I wanted to TTC on asprin and she said she wouldnt discourage me from taking it, so I have been, and like before, fot pregnant my first cycle of taking asprin.
So, would anyone else please mind sharing when they started heparin/clexane to reassure me? I am worried not taking heparin from now will mean I lose this baby.