Some women also have a temp dip right before they O (I never have though), so it could be that, although I've read that you don't ovulate until at least 2 weeks after a m/c or d&c, depending on your hcg levels. Have you had betas drawn recently or taken a HPT? Your temps can be all over the place right after a m/c as well.
I'm just getting back into charting bc I JUST got a negative HPT yesterday, but I've been having all kinds of crazy symptoms - (TMI) horniness, moodiness, insomnia, and boatloads of EWCM. I think it's my hormones evening out though....it can take awhile. I have found a lot of good info on this site (especially info on what to expect after the m/c):
www.pregnancyloss.info. HTH!