UTI at week 5

Eileen

So I got the two lines 2 days ago after a miscarriage 3 months ago. Excited! Went to the doctor today for first prenatal visit. Tests showed I had UTI. Doc recommended we don't do medicines since I did not have bad physical signs ( painful urination, discharge etc). Am however so scared of not treating it. What's your view? What antibiotics are safe? Thanks and baby dust to all of us trying.