Is it me or?

My SO and I had sex for the first time in almost 2 months last night. I’m 34 weeks pregnant and it’s been such a struggle to be in the mood. I’m usually wicked tired and he’s generally understanding. It doesn’t stop him from trying a couple times a week to get me in the mood haha, but last night it finally happened. It was fine, a little uncomfortable, but we made it work. My only problem is HE DIDN’T GET OFF. I felt pretty down on myself about it. I’ve gained about 45 pounds with this pregnancy. I asked what was wrong and he said he had jerked off in the shower that morning. I don’t know what to believe. He said it felt great and he was really happy we did it but after 2 months, I find it hard to believe that it wasn’t because of me or for my thoughts to wander and think maybe he’s found someone else to take care of him. I don’t know. I’m just feeling a little discouraged today. 😔