Since I terminated a pregnancy, my boyfriend has been unable to ejaculate

He says it is nothing to do with the abortion, but before it happened, the sex had always been greatI’ve been with my boyfriend for about six months. I’m 39 and he’s 51. We have a great relationship. I fell pregnant after only a month and a half. In a decision made jointly with full support, I had a termination. The sex we’d had before was always great. However, since the termination my partner finds it very difficult to ejaculate. Could the termination have an