This is a question at any experts, but anyone can feel free to reply.

I fell pregnant with my firstborn 10 years ago, without any problems. I am now 29 years old. I fell pregnant 5 1/2 weeks ago firt time lucky after being of the merena since jan'05. I got terrible broncitus and was given penicilin to get me through.My system was very rundown. I started bleeding heavily few days after my doctor confirmed with a blood test that I was 4 weeks pregnant. I went to my gynae and he said that I was having a miscarriage at 5 1/2 weeks and that it was nature's way of sifting and rejecting whatever was'nt normal. He also picked up a small bit of endometriosis and said that he will see me in a couple of days to see if I my uterus is clean. He said that I should wait about 3 months before trying again, giving my uterus time to strenghten again. Needless to say I am scared, not knowing what caused this as this was a planned and wanted pregnancy. My gynae said the chances of it happening again is very slim, but I am worried what are my chances of it happening again. Should there be reason for concern? Although I fell pregnant first time trying, could I be at risk for future pregnancy and how long is long enough time for my body to prepare itself and heal?