I need some opinions

My boyfriend and I have been together for a year and a half we have a very good relationship and are starting to plan for a baby I myself have been trying to become pregnant for 5 years going on 6 and it's been really rough we had a conversation one day and I asked him what he would do if we found out that I can't conceive and he told me he will love me for ever no matter what anyway we pretty much complete each other I have been thinking about proposing to him I know it's not traditional but I need some opinions I want to make a scavenger hunt to lead him to the go cart track and post signs on the go carts driving around the track talking about how much I love him and such and pop out as the last go cart Comes around and ask him to marry me on our 2 years what do you ladies think is it crazy ????