One ovary

So I had a baby in June 2017 but upon a dramatic delivery (I’ll spare you the details) it was discovered I had a tennis ball size cyst on my ovary. I had to have my ovary removed so now I am ttc again, but this time with one ovary. My OBGYN told me the other ovary would take over and I would be able to have another baby. I’m so nervous it’s not going to happen. We are ttc now. Anyone in a similar boat??