Nausea, fatigue, and coffee

I have always been a huge coffee drinker, and when I say huge I mean I was the girl bringing the entire pot of coffee with me to school or work in the morning... Ever since I've been pregnant (I'm about 7 weeks) the thought of drinking coffee makes me want to throw up all over the place (as does everything lately)... Because of this I am unusually tired which I'm sure is due to the fact that I'm 7 weeks pregnant, but also my body is not used to this lack of caffeine... Does anybody have any tips for me so that I can get my caffeine fix or get rid of my nausea?? Currently I sleep about 8 to 10 hours during the night and take at least one 2-hour nap throughout the day... I know I will not be able to drink as much coffee as I used to because it is not safe of course, but any little bit will help at this point