Congratulations!!! I was in the same position a few years ago.
I lost my first baby in Nov 2000 at 9 weeks. I was completely mortified and told my partner that i just couldn't bring myself to try again any time soon as i couldn't go through with another loss so soon after, so we agreed to go back onto the pill. But, ... my period didn't arrive. After 3 months of waiting for my period i eventually went to see the doc and was told that it was normal to go upto 4 months without a period after a miscarriage so not to worry. A week after the appointment i was back at the docs...to tell them i had done 2 pregnancy tests and both were positive!!
I was sent up to the hospital the same day for a scan as i was so worried. The scan showed that i had conceived the week after i had my D&C!! My midwife was soo brilliant throughout the pregnancy and made me feel so at ease with it all.
My daughter is now about to celebrate her 6th birthday-my lil miracle- and she is proof that healthy pregnancies can and do follow miscarriages!!
I wish you a a healthy and happy pregnancy!!