the results you have mentioned is definitly urinary tract infection
as you are having a very high no. of pus cells in urine however you do not mentioned the amount of albumin
present in urine as slight amount may appear in the urine. the infection you are having is not safe for both you and your baby however there is no evidence of the UTI leading to preterm labour. mostly antibiotics are not recommended in the first trimester ( first 12 weeks of pregnancy
) as they have teratogenic effects however after that you can use antibiotics to treat the infection. precautions you can take is to have plenty of fluids and consult your gynaecologist so that you can have an appropriate antibiotic.
best wishes for you and your baby :)