UTI after sex 😞

Has anyone had an UTI (urinary tract infection)??? And it went away with home remedies?? How long did it last?
 I will love some advice beside drinking lots of water.. I dont like to take antibiotics, its a last resource for me.. but I want to treat it before monday, or else I have to see my GYN on Mon. If you have any advice or tips, I will appreciate it.