In march i had a MC at 5 weeks and got pregnant straight away before an AF. I then MC in april at the 5 week mark as well. If ur body isnt ready to be pregnant again your body wont let you so there is no medical reason to wait (unless u were far along of course)
For my next BFP my Dr. will have me get blood taken ASAP to see if my progesterone levels are too low which may be causeing my early MC. But she personally thinks it was just 2 unlucky times with bad chromosomes splitting.
I am not waiting this cycle either for another AF. I am just goin to let nature take its course.
I did notice that I ov'd a week later than i normally would have after my 1st MC, and I am yet to ov after my 2nd (but if it follows suit of my last one... i prob wont ov until next week)
Good luck my dear!