Is this normal?

Ever since I found out I was pregnant not sure honestly when this started but it’s been a couple of months now, my urine has been really ‘ bubbly ‘ I’m currently 37 weeks and this has been going on for so long I don’t have any symptoms of any infections down there and I got tested not that long ago this month and this has been going on for months. I’m just confused on if this is normal and has happened to anyone during pregnancy. The only time I’ve seen ‘bubbly’ like urine is when my SO drinks and goes to the bathroom but I’m obviously not drinking so?