Sos vagina Help

I have this discharge it's milky white it kind of looks normal but it has a smell of fishy/sweetness my boyfriend and I had sex last night and we both could smell it. I had a uti and was on the antibiotic Macrobid for a week and I feel I have experienced this since I took the medication. I feel a little discomfort but not much. Do you think this could be a yeast infection?