Help, I’m worried 15 weeks pregnant.

So I posted a few days ago relating to having a uti while pregnant, I’m 15 weeks + 1 day. I mentioned that I had been having bad cramping & lower back pain. I’m still on my antibiotics, I rang my midwife the day I posted on here & she said if panadol isn’t helping to call back & to keep taking my antibiotics because they’d make me feel better but I decided I would wait a few days to see if I’d feel better. But today is day 5 and I feel as if though I’m getting worse, my cramps are become more severe, and the lower back pain is super uncomfortable especially to sleep (I’ve tried everything including a pillow for comfort & heat packs & pain relief). I’ve also woken a few days in a row with small blood clots, with a tiny bit of fresh blood. I do plan on ringing the midwife again today as I’m becoming worried. What do you ladies think?