TTC after loss

I have a 4 year old daughter and I was 5 months pregnant a month and a half ago when I lost our second daughter due to a CMV virus I caught. Cold like symptoms for adults and children but very very harmful to unborn babies once passed through the placenta. We were told it would never happen again. Once you have it, you’re immune and most people already have it but I didn’t and contracted it during pregnancy. We’ve never tracked my ovulation when trying for our other two but we so desperately want our oldest to have a sibling she can hold and play and love on and we also want that, we were so ready for that baby girl....and I don’t want our oldest to be 7 years old or older before she gets that. We didn’t want her to be this old. She just turned 4 a couple weeks ago. She was so let down when I had to tell her I didn’t have a baby in my belly anymore and she talks about how much she loves her sister all the time and how she has wings. So this is not to replace our baby angel by no means but after losing her and having so many of my friends and family expecting and due the same time I was, I feel I need a baby to hold, I need that to look forward to and to have that hope. We will try this next time I ovulate so prayers please!