Baby Fever!!!!

I think my fiancé wants a baby!!! Im super excited. Ive been wanting to have kids with him since our 1 year anniversary. I didnt want to scare him away though.😂 This is our 3rd year together and Im almost certain he wants it as bad as I do. Im honestly just scared to actively try. Weve been together 3.5 years, NEVER have used protection, have sex like rabbits and we dont like messes so his swimmers havent gone anywhere but inside of me. Theres no way im that "lucky". I dont think I can have babies and Id rather be oblivious than know I cant. Between starting my own business and planning my wedding. I dont want the added stress of being permanently infertile. He hasnt straight up said it, but he has been constantly rubbing on my tummy and kissing it. He knows when my period comes normally so anytime its late hes overly excited. Last period was 2 weeks late and he was the happiest man ever! When I told him it came he mumbled under his breath "ill get my mini eventually" then walked into the restroom came out like 10 min later...with his eyes all red and watery looking. It broke my heart! I think its time to start trying! I absolutely cant wait to make the "Im pregnant" announcement to him. Any tips or Advice?