CD 12 and no ovulation yet

No positive opk this morning. I'm getting so impatient waiting to see if the Clomid makes me ovulate or not!! BF and I have been at it every other day. I'm trying reeeeally hard to get the timing right. He said yesterday "If you don't get pregnant this month with the Clomid and prenatal vitamins and all the effort you put in, it's going to be crazy" I hope he's not gonna say he's not down to go back to the doc. The waiting is so hard! It's all I can think about now