My husband refused to change the style of underwear he wears which are tight boxer briefs. I can't help now at 3DPO but obsess thinking he hurt our chances. We did BD a few times first thing in the morning when he didn't have underwear on which is good but it still bothers me. He told me there are no temperature issues with his "boys". What's the consensus on here? Oh and we do have a son but he used to wear loose boxers. Ugh stubborn men!