Reaction Time

So, my s/o of a year & a half is & has been a very patient, respectful man when it comes to my virginity. He has left the ball in my court & said whenever I was ready was fine. We are both in our mid-20's. Last night, I talked with him & told him I was going to go to my OB/GYN & talk to her about birth control options next week.  He had no reaction, so I continued and said that I feel ready now to have sex with him, but I want to go on birth control first. His response: "Oh okay..." and went back to his Facebook feed. Really? I'm not needy by any means, but damn I expected more enthusiasm. Am I expecting to much by wanting a better response from my s/o who has been wanting to plow me (his joking term) for over a year & a half? Thanks