bleeding for over a week with no clots

Angela

I started spotting after intercourse last Saturday night and by Monday it was a little heavier but still not as heavy as a normal period bleed by Tuesday it had stopped, Wednesday started again. Thursday almost stopped. Thursday baby looked good on ultrasound heart rate was 156 and was told I have placenta previa and that it should correct itself. Friday nothing Saturday bleeding again but light Sunday almost stopped today nothing then started bleeding again. I have another ultrasound scheduled for tomorrow. I also have a 5.5 cm septated cyst on my left ovary and having pain on that side. Dr called and said that my urinalysis came back and I have a very bad bacterial uti so she sent me antibiotics to the pharmacy. the bacteria is Kisibellia and my bacteria levels are over 120,000. what are yalls thoughts. not sure what is going on.