I'm so fucking annoyed . My so and I have been dating for a year now. Im looking for a husband and would like a big family but really he brought that side out of me. He calls me his wife

Introduces me as his wife to his friends,co workers,his boss. He's mentioned wanting to have kids since month 1 . Everything moved pretty fast for us but its like we were made for each other. We've been TTC for 9 months and were in the processes of moving in together. He tells me last night." I'm not even thinking about marriage till maybe like 5 years " Then why tf are you trying to impregnate me?? I'm getting on BC at my next OB appointment. I regret acting like a wife , allowing him to introduce me as his wife ,and TTC with him.I made a huge mistake. Now I'm reevaluating the entire relationship. When I told him we aren't on the same page and I think we should consider breaking up he tells me " you being in or out of my life doesnt hurt me" ..... Thoughts?? Feedback? How would you feel? Do you think I'm overreacting?. Yes a year isn't super long. But why live like we are , walk around telling ppl I'm your wife, TTC with me and then say I'm not thinking about marriage for MAYBE another 5 years and " you being in or out my life doesn't hurt me" ...wtf?,