Caffeine free coke!

I don't know if I have been living in a bubble and these have been around for ages! But I just discovered this today! I know apparently your allowed 200mg or some thing of caffeine a day when pregnant, but I still didn't want to risk it, so now on the odd occasion I can have this! Not much to update on, only symptoms I have been having at the moment is back ache and tiredness and feeling hungrier than normal, and not being able to have large brakes between meals with out feeling weak! 4 weeks today!