Ugh! Any experience a UTI in late pregnancy!?

I felt like I had an UTI as this “urge” to pee after I would fully let out my bladder was so consistent. No burning or pain, just the excessive urge. Anyways, I mentioned this to my OB yesterday and she said she would see if they had enough urine to sample but to take the antibiotic anyway (Nitrofurantoin is what was prescribed). I researched and it’s deemed very safe for 2-3rd trimester, just not right before delivery (I’m only 35+2 so I should be good there). Anyone else experience this or take this medicine? I haven’t taken ANYTHING this entire pregnancy but obvi want to keep myself and babe safe.