What were your numbers?
My husband and I have low morphology and when we started this journey our RE recommended IUI as well, it didn't work for us, but we also learned a lot by doing the IUIs. I've seen couples get pregnant on the first try too.
There is nothing you can do to increase your numbers in the next two weeks. The male body cycles sperm every 3 months. I believe that there are vitamins that you can take. I have a list somewhere, PM me if you'd like that info.