For me I found over the phone easiest. I could do the happy voice and then fall in a heap. Face to face was awful because I felt like my eyes gave my pain away. I used to call it face crack off. As in you smile til you feel like your face will crack off and it's hard work.
The thing I tried to remember as a long term ttc is that the person who is pregnant hasn't taken my turn so it's not about me. Still hard going though when at the time I felt like some of my friends rolled in sperm and didn't even DTD and got pregnant