What’s the point of an ultrasound?

Leslie • IVF #1 baby due Dec ‘19

TTC for a year here. Very regular periods and the last three months of ovulation tests confirmed pretty regular ovulation around days 11-14 of my cycle.

I went to my gyno yesterday and she suggested an ultrasound, but that i would have to do it while I’m ovulating. I asked her what the scan would prove, and she said pretty much that I’m just ovulating.

Well... I proved that I am when I did ovulation kits for 3 months, so..? Exactly what would be the point of this? I told her I’m skipping the ultrasound and going straight for a semen analysis, but now I’m wondering if I should have gotten the test done. What do you think?