Low abdominal pain

Hi good evening .. Im currently 19 weeks pregnant ..next week papo kasi ang sched ng monthly check up ko .. Nakakaramdam ako ng pain sa lower abdomen , na parang yung pain pag may uti .. Para po kasing naniniksik si baby bandang bladder , pressure symptoms po kaya to dahil napupush ni baby o possible na may uti talaga ko and need na magpa urinalysis and check up? Thanks po