Oh meesee so sorry to hear that. Five MCs, what a horror! Have you been monitored for what might be causing this? Usually you get referred after three MCs, I believe. In that case I would consult your doctor about when to TTC again.
There are differing opinions out there. Some doctors say to wait until first "normal" AF after MC and then start trying. The reason is often that otherwise it will be difficult to date if you do get pg immediately. On the other hand, many doctors give you the immediate go-ahead as they would be able to date your bean at your first scan anyway. In general they do recommend to wait until the bleeding has stopped to avoid risking infection.
Us affected women also have differing opinions. On www.pregnancyloss.com the page author recommends waiting until after first regular AF. Her reason is that if you TTC immediately, you won't know what's going on (on here, we call it the "wtf-cycle" for that reason). For instance, you won't know when to expect to be ovulating; OPKs might give you false results; CM might give you wrong indications; and HPT are tricky because you won't know when to start using them as the WTF cycle can easily be much longer than your UCL; and if you're unlucky they might show + even if you're not pg, due to remaining pg-hormones from your last pgy. So this might all be quite distressing, and expensive if you splurge out on OPKs and HPTs! You can save yourself this tension and stress by waiting until your first "proper" cycle. Another argument for waiting is that it can help avoiding the feeling, if you conceive again quickly, that it is just a continuation of your previous pgy. You get the chance to properly grieve your lost bean and to welcome the new bean as a new bean.
On the other hand, many of us on here did TTC again immediately. For me, it did help to have the feeling I was doing something positive towards conceiving again, rather than just looking backwards and being sad. (Though I did get all the trouble mentioned above, too, and wasted lots of ££ on meaningless tests.) Also, stats show increased fertility immediately after MCs (your body is still in pgy-mode and wants to get pg again, so to say) so for me it made sense to try to make the most of that increased fertility. Focusing on TTC rather than on the MC did help me look forward and get on with work and stuff, though the grief about the MC sometimes came back to "bite me in the bum" as someone said, at odd and inconvenient moments.
Over all, if there aren't any clear and convincing medical reasons (as for instance if your pgy was molar), then I think it is really up to how you feel. If you and your DP/DH feel up to it and want to, then go ahead and TTC. Just don't expect any miracles (the fun about miracles is that they happen unexpectedly).
Anyway, welcome here, I'm glad you found your way here, although sad for the reasons.