18 weeks UTI and stomach pains

Penster
Hi everyone,
I'm 18+3 today and I've been suffering with on and off stomach pains thoughout the 2nd tri, my mid wife says it's just stretching pains and not to worry.
Last week I had a different pain, it felt lower and hurt a lot worse especially when I stood up from sitting or when I bent down. I went to the dr who diagnosed me with a UTI and gave me antibiotics which I finished at the weekend. The pain never fully went away just lessened and since I stopped the antibiotics it has gradually been getting worse again and today it's as bad as it was a week ago. Going back to the dr tomorrow to get tested for UTI again.
I just wondered what everyone else's experiences are/were with stomach aches during pregnancy? Also I want to cry right now, don't know if it's because I'm in pain, because I am worried or just hormones. This is tough at the moment, I am so grateful but right now it is hard.
Xxx