When is a right time again?

I’m 29 with 3 little girls! Just this month we where pregnant again with number 4 and then we went through the worst had a miscarriage 😥 never thought I would have to go through something like that! Now I’m scared 😟 to try to have another one thinking it could happen again!

So my question is when is the right time again??

And how long does it take to get pregnant again after a miscarriage??