Hello, and thank you for your question. I will be happy to assist you. Answers are for educational purposes only.
Hi. Let me read your question carefully.
Yes. The bleeding and flake could easily be related to the uti.
I would to be sure, check a blood HCG level now and repeat it again in 2 days.
If it is increasing then that is a very good sign.
By 6 weeks, I would have an ultrasound to confirm viability of the pregnancy just to be sure.
No. Miscarriage does not look like a flake.
It would look like spongy, gray, off white tissue. Also you would have severe cramping and more bleeding.
Yes, more likely.
But the testing I recommended will provide good data to back that up.
Spotting can be normal in pregnancy, but not all spotting is. It depends on the cause. If it is related to implantation, then yes it is. You could be having it because of the UTI. The only way to know for sure is to investigate it further like I recommended. You have a reason to spot which is good, but you should know for sure. The good news is that you are not cramping.
Your welcome. Best of luck.