how long does it take for the body to work again?

Hi everyone,
am feeling a dispondent today :cry: because it would appear AF has arrived 32 days after i lost the bubs. My cycle is normally 26 days, I saw on the scan after the mc that I was ready to ovulate in a few days. Did all the mucus stuff, lots of BD, had 'implantation' pains and now BF-! I know that it can take a while, but I don't O very often due to thyroid and am worried that we have just lost our last chance.
Because I'm nearly 40, my other boys are all at school, I need to make a very hard decision about trying again or accepting that my last angel was just that, my last.
Sorry, just rather upset, thought it would happen easily, DH is away again next time I ovulate, which is a big pain.

Anyway, any advice re ttc and raising fertility would be great, I know many of you have been through so much, so love sent and big hugs.
xxx