Thank you for your query.
You cannot diagnose a UTI solely based on your prior experience, specially during pregnancy
Severe or untreated UTI can lead to florid infections, often leading to preterm labour pains.
THe pain also sometimes could be in itself due to preterm labour or an impending miscarriage
, which you mistook for UTI.
Please consult a gynecologist or visit an ER at the earliest.
Even if its a UTI, the diagnosis has to be confirmed and urine culture based antibiotics have to be started.
In case its not UTI and you are having the beginning of preterm labour, it is all the more reason to visit the ER soon.