Short answer: when trying to get pregnant, act pregnant from the moment Aunt Flo leaves til she comes back!
Long answer: you never know when you will get pregnant. Would you want to risk losing a baby because you went on a weekend bender with the girlfriends? The general rule of thumb that any "get pregnant" book will tell you is that if you are trying to get pregnant, cut out all anti baby things out of your lifestyle. That means if you are a chronic caffeine addict, cut it out. Caffeine can actually lower your chances of getting pregnant. Caffeine is really a drug. An evil addictive drug! Not good for your body when over consumed so if you must have that latte, make it ONE medium coffee a day and work on cutting that out since you really shouldn't consume caffeine pregnant. There are studies that it causes ADHD or something. Then everyone knows you shouldn't consume alcohol pregnant so that should be cut out as well. Alcohol has been linked to birth defects and birth defects could be fatal to babies. What if you get pregnant and you drank to much alcohol and it caused a birth defect? The first 4 weeks the neural tube forms. This is the most common birth defect associated with alcohol. If you don't have a strong baby then it could cause a miscarriage or preterm labor. Neural tube defects could cause either of those things to happen. So don't do it!
Other things you want to avoid are lifting too much weight or crazy death defying stunts that you wouldn't do pregnant. Now for crazy things I want to do I try to schedule them when AF is in town or shortly after. Same pretty much with drinking away sorrows of another month gone by.
I am always optimistic that "this will be the month" so yes I cut all caffeine out of my diet at one point and pretty much don't really consume alcohol almost ever. Just in case.
