Trying but not trying

Need your thoughts on this. How to decide when it's time to try for another?

I'm so torn. I'm a very rational person and I have to think through pretty much everything..

On one hand, I'd love to be pregnant again and my babies to be relatively close in age. On top I'm already 35 and I've had 2 miscarriages before. It took us 2 years to get our beautiful rainbow daughter. So I'd rather start early, I think. What if it takes long and I have to go through shit again... And I miss that baby stage already. Don't get me wrong, I love that my girl is getting big and strong, but I miss my baby..

But on the other hand, I don't know if I'm really ready for another baby already, if it miraculously happens sooner than later? I'm thinking about changing my job and wouldn't it be bad if I start a new job and be pregnant right away.. But I waited soooo long to have a baby all for job reasons, I don't want it to be the reason I wait again..

Oh I don't know. Few days ago we had sex the first time with him finishing inside me. Few days before I've said to him, that we don't have to protect, but we don't actually try with the whole bbt, opk, thing. I've only had one period pp and always had very irregular cycles, so I have no idea at all when I might be ovulating. So I know that the chance of me getting pregnant from this one time is pretty much zero. But since then I'm like one minute "wow, maybe I might get pregnant already, I'm so excited" and next minute "wow, maybe I might get pregnant again, is that really the right decision".

So, after all that rambling: for you mamas of more than baby, when did you know it was the right time?