it's never going to happen for us because of SO 😰 please help

My SO has never had trouble finishing but this month is our first month of clomid and he just can't seem to finish I give him head and play with him to start then I get on top... pull out all the stops but it's just not happening and it's hard to hold back the tears, this is the first month we've had this issue. It kinda feels like he's just not enjoying it. I try not to put pressure on him but he attended appointments with me so he knows when we need to bd, what can I do to take some of the pressure off him, we are in our fertility window and I really want to give us a good shot. Really need help and advice asap. Tia girlsÂ