Is this bleeding basically now my AF? does it count as my AF?
I'm not sure, but i would think so.

* Is it safe to TTC so soon after having an early m/c?

Yes, my doctor said most people wait 3mths just to get their 'mind' ready to TTC but it is perfectly fine to TTC straight away. However, it is good to wait 1 month so that if you did fall pregnant stright away then you have a 'normal' AF to go off working out your EDD.

* Do i need to have a D&C?
Only if the bleeding continues to be heavy. I bleed for about 7-8 days i think all very heavy which i was told is normal. If you keep passing lots of clots though i'd go see a doctor about getting one though.

* Should we wait 1 more cycle before trying? (we really don't want to).

Same as answer no.2. We didn't. I don't see the harm in trying again straight away if thats what you and DH really want.

I've been told that when you have an early m/c, it's almost like "flushing" your system out in a way hence some women fall pregnant straight after - is this true? (for some)
Yes i have heard this too. Same as giving birth. Some women fall pregnant easily after giving birth because they're more fertile straight after.