Husband Can't Perform due to pressure

So, we recently started mediation induced treatments to make me ovulate. The treatment has been really working today's eggs are 18.6 and 20.3. However, I think ny husband is stressed and can't seem to perform. Give me some advice on how I can spice it up. We have to have sex today and tomorrow and I've noticed the letrozole is kind of drying me out. I got the preseed but he doesn't seem to like it. Maybe I didn't use enough... help me please!