i would get an opk and see if you are having your surge. also i would get an hpt and see if it is completely negative. if you are still spotting it would seem that you may not be down to zero quite yet.... but i dont know if this is medically true.
i stopped spotting and it took 10 days after that to get a clean hpt. that was with a loss of 8+4.
BUT you sure do hear of people getting preggo right after a mc!! so maybe your body really is totally on track already! dont blame you for not being ready to bd yet tho. not while your still spotting.
hope you find out what is going on! and i hope this is your body telling you all systems are go!