We came very close to getting the full medical workup after two chemicals and one miscarriage, but 1 cycle after the miscarriage she was pregnant again before we had the chance.
She did end up getting a thermometer and keeping track, although we never did anything with the information and it didn't change anything, it did make her feel better to have something that made it feel like we were "doing something" as it got harder and harder and took longer and longer.
In the end, we were still (barely) within the range of statistically normal, but that wasn't particularly comforting while it was happening.
We have another 3 weeks left until he is an actual independent (sort of) human being, squirming around and crying and keeping us up all night for the next two decades