You can start trying as soon as you feel ready. A lot of doctors will say one cycle but that is usually because they want you to get a period so they'll know around when you conceived. Lots of people have gotten pregnant before they even got their first period and went on to have healthy pregnancies.
Dr.s will tell you to wait 3 full cycles to make sure your hormones are back in balance. They can check them with a blood test too. Acupuncture may help also. If you are using anything like clomid, there is no need to hormonally wait since clomid takes over that part of your system. Sorry about your loss - it is a horrible, empty experience...
i started trying again after i was finished bleeding...I had my miscarriage at the end of novemeber and was pregnant again by the end of january.