Need opinions! Ttc for 4 months..

I got off nexplanon feb 13 2018 and have been ttc ever since

I am currently 8 dpo I believe but when I was 4 dpo my fiancé told me i should go on birth control again.. he seemed so excited but then he said that. He told me he doesn’t want to change diapers etc

But HELLO I AM 8dpo ! He decided to tell me at 4 dpo!!!

Honestly I was so exited for a baby with him and now I don’t know what to do...

Edit: he said he didn’t think about it, he just changed his mind..