I heard if you're in need, have a cup.
Besides caffiene being a diuretic, it removes water from your system and dehydrates you, so you have to drink a lot more water, and that combined will make you pee even more. the process of making the beans creates a lot of carcinogens that your body has to deal with. If you've got high blood pressure, the hyping can be bad. And it's acidic, so could cause your body to become more acidic, and I believe baby services require an alkaline state. Could also cause more heartburn.
On the other hand, it can be an effective and natural [sic] laxative.
I am a recovering espresso fiend. While I haven't had coffee in about a year, I still want some. Although the effects of the smell are starting to wear off - I can walk into a coffee shop and not want to lick the walls (ok, that was gross), I still miss the whole coffee thing, going out, sitting around, sipping. ah.
Perhaps you're having a problem with mantaining your blood sugar? Caffiene can mask blood sugar issues, too. Consider cutting back on your refined carbs, esp if you have them without protein.