Blood in urine- advice please

Two weeks ago I had some bleeding when I peed. When I wiped and some in the toilet. I went to the hospital and they said everything was perfect and normal. Tonight it happen again so my doctor told me to go back. The blood is only in my urine so they think it’s a uti. The results will come back in 2 days. They aren’t 100% sure what it is. I’m not in pain and it doesn’t burn when I lee like my past UTI experiences. I’m 24 weeks. They said if there’s no infection and I’m still having blood in my urine then it could be something else that isn’t normal.

Has anybody experienced anything like this or have any suggestions? Any advice at all