I'm very sorry for your loss, Jules.
I fell pg soon after having DD and lost it at around 6 weeks. I think it was my body's way of telling me that it was just too soon after everything (traumatic birth and had some issues afterwards with getting back to normal) to be up to the challenge of cooking a full-termer, and DH and I hadn't really planned it and were a bit worried about how we'd cope, so we decided to be very careful and not TTC again for at least a few months (it ended up being nearly a year after my m/c before we tried again, purely because of finances and not wanting to have another before I could cope with 2 under 2).
I think it's an individual choice for everybody, you know what is best for you and your body will do what it knows it's capable of. I personally would probably wait another month, just to give your body a chance to recuperate and get back into top baby-growing condition, but the choice is yours.

Best of luck with everything hun, hope it all works out for you very soon!! Look after yourself.