Drinking cold drinks during pregnancy

Hi fellow mummies! This is my second pregnancy and I’ve been drinking cold drinks (green tea/ cola/ sprite) every meal since T1. I even have to drink cold plain water, cus cold drinks help with my nausea. I’m worried will it affect my bb, now at 13w. Didn’t drank as much cold drinks during my first pregnancy, only occasionally. Now is everyday… how how how :(