Bless your heart. I cannot imagine the pain and my heart goes out to you. Breathe, Sweetheart...
Ok, now for my two cents... I agree with the person who said to switch from asprin to the prescription thing -- ask your doctor about that one. I have always heard that you DO NOT take asprin when you are pregnant... Also, how much caffeine are you getting, that has been known to cause miscarriages too... I would limit that as well or try to do without.
I was married for 10 years and tried to have children, with no success at all. I finally got divorced and moved on with my life for many reasons. I was 38 and I figured having children was a dream I would never know. Four years ago, I met the man of my dreams and remarried, I immediately got pregnant! At 42! and had my first child a couple of weeks before my 43rd birthday! She is healthy, happy and most certainly my miracle! I never dreamed it could happen to me at that point! And now, I am pregnant again at 45 with another healthy baby! I am stunned, thrilled, amazed, BUT my point here is that I was finally happy in my life and when that happened, everything came together. All the medicine in the world can't cure the causes of stress. (My "stress" was the ex, yours is probably something altogether different, but stress nonetheless...)
So, try to relax. Put your feet up more and breathe in the miracles of your life. Albert Einstein said you can look at the world as though nothing is a miracle, or as though everything is a miracle... it's your choice.
Don't get discouraged. (There may have been a very good reason those pregnancies did not work out.) And remember to breathe! Take care of yourself! Love yourself, your husband and your son, and your "miracle" will happen.