Hi I'm 6 pregnant but on 24 April I start light bleeding with small clots I go to doctor and he said I have Urine infection or it could be a miscarriage he proscribed me 7 days antibiotic course I had peroid like bleeding with small clots and pain in lower back but from yesterday it gets light.. that was a UTI or I have miscarried

Your doctor has to know which it is; if you are experiencing that much discomfort then GO BACK GO HIM.