I'm so sorry for your loss. I have had all natural m/c and swith my last I think I bled roughly for approx. 1 week. I was just over 5w pg.

As for telling your children, I would be honest and tell them that bubs couldn't stay on this earth.

Depending on if you have religious beliefs or not you might want to express that bubs left earth to be in heaven with God or take a different approach like baby is with angels etc....

Of all the times I m/c, we tried as soon as I was mentally ready b/c physically it was like a heavy period with my m/c. I think I have had the most success ttc after waiting one cycle.