Relationship

So we were trying to get pregnant.. about 3 weeks into it.. he said I should just get back on birth control an to just wait on getting pregnant.. his excuse.. he was/is scared. Missed my period.. took a test.. i'm pregnant. Since finding out.. he's idk.. acting different towards me. I'm a paranoid person. Plus I feel when vibes change/switch.. and the vibe idk its different now he is distant. I'm 6 weeks. Idk what to do.. something is just different.