I've switched to decaf coffee and I've always loved herbal, green, and black teas. Black tea is fine in the morning but like the pp said, caffeine washes away vitamins from your body/baby. I have decaf English Breakfast & Earl Grey, they're my fav in the morning.
Have you tried Celestial Seasonings Bengal Tiger? It's my absolute favourite. No need for sugar, it's great for after dinner. Peppermint can exasterbate heartburn but if you don't get heartburn it's good too.
I get bored of drinking water all day. Since we can't have wine I've tried new things ie herbal tea flavours (ginger - yum!). Coffee doesn't excite me as much as my taste buds have sort of gone off it. My head wants it, body not so much. I stay away from sugary drinks, don't want to gain weight by drinking empty calories like pop. I avoid it pregnant or not pregnant anyway.