It's hard to say. After a miscarriage it can either mess with your body and make you O a bit later or you'll O around the same time. With my ectopic, after it was aborted completely, I ovulated around CD24 which is relatively normal when I am not taking ovulation meds. (I ovulate around CD19 at the earliest when I dont take O meds, but CD14 when I do) But it wasn't exact.
So, really, all you can do is just test and hope for the best! But just realize that it might change things this cycle but your body should be back on track after a cycle or two.