Caffeine & pregnancy

I’m 6 weeks 5 days ... suffered a miscarriage last December but thank God all seems to be going well so far this oregnancy - had first ultrasound yesterday and baby has a strong heartbeat. I’m trying to eat as healthy as I can but I do love Starbucks and coffee in general. I usually only drink one 8 ounce cup a day if even that. Is this ok?? I’ve heard too much caffeine can cause a miscarriage and they say to stay under 200mg a day. Anyone know where else I would find caffeine besides the obvious chocolate - I notice most wrappers etc don’t list the caffeine amount on the leave so it’s hard to find this info. Thanks!