Sex drive

So me and hubby are ttc. I am on treatment for pcos. Throughout the cycle, I am visiting the doc on days she has told em to get a scan. My egg size is 20 mm now. She told us to have sex everyday. But everyday is not possible for us. Like, we cant do it everyday. And my husband is finding it difficult to do it everyday even when I am ready to try. Anything to increase the sexdrive?