I have factor 5 leiden amongst other things. I was on lovenox for my first pregnancy after two miscarriages. I am pregnant again (after a loss last year) just 4 weeks 2 days. I moved so I'm seeing a new dr. I cannot for the life of me remember when I started the injections with my son. I think it was 8 weeks. This dr isn't seeing me until 8 weeks. But I wanted to see what others experiences were while I wait for my Dr to call back. I am getting my betas done really for my own piece of mind until I get my first sono at the end of June. The waiting may kill me lol