getting husband on the same page

so to start off, my husband wants another baby just like I do. however he doesn't want to kill the "fun" of sex by focusing on "trying". I am getting frustrated because yes we have sex in my fertile window but this month like most others we had sex one day that I had ewcm then not again until the day I am predicted to ovulate (the day ewcm ends before temp rise). been 8 months. how do I get him on board with "trying" without taking the "fun" out of. like so he is aware of "hey we need to do this today" without making it awkward?