Post Chemical Pregnancy...

Hi Ladies,
I just experienced my first chemical pregnancy a few days ago. Did you do anything to increase chances for a BFP the following month? I'm thinking of cutting out caffeine completely.
I cut out alcohol which helped because the month before I was drinking and didn't even get pregnant, but once I cut the alcohol I got a positive result. So my thought process is if I cut out one more thing, I can possibly get that BFP and not experience another CP.
Any thoughts?