Ok i was just wondering something and wanted to know if any of you girls knew the answer. I have been told by my FS to take Berocca once a day (a tablet that is full of the B group vitamins) anyway as im sure you know if you have ever taken it, that it causes your wee to be fluroescent yellow. Anyway it just occured to me that it could possibly affect an OPK result......or am i just being dumb?? Does anyone know or has anyone used OPK's while your wee has been this fluro colour??? Thanks.