5weeks

Good evening ladies I have a question. This is my first pregnancy ever and I’m lost on what to drink besides water. Before I found out I was pregnant I use to drink diet soda and sugar free powerades/gatorades w/ electrolytes. Would it be safe to continue drinking diet soda and powerades in moderation? I drank a brisk raspberry sweet tea that had 7mg of caffeine in one can today and feel guilty. What am I able to drink guilt free?