Chronic UTI during pregnancy

I have chronic UTI and have been resistant to many antibiotics. Doctor now suggest to get admitted to hospital to administer neuroflorantin via injection for a period of 14 days. She said this antibiotic is generally safe for pregnancy but being a FTM currently in week 13 feeling quite apprehensive not knowing how it might impact baby. If I ignore the UTI, it could also be risky due to premature labour. Anybody else had a similar issue?