Bleeding on birth control pill

Hi there, 21F here and I’ve been on BC pills since November. Everything has been going great, still is, a lot of my problems went away and I love my pills. I haven’t gotten my period since I started it.

But, yesterday morning when I went to the bathroom it was pretty much a bloody disaster. I think my urine was a bit red and it just looked like I was on my period again, without the cramps or headaches. Later in the day, BOOM! Nothing, no blood, yellow urine.

Then again this morning, same thing. Bloody mess, urine is red? I don’t feel cramping or sick at all, I was just kind of like “..so that just happened..”

I messaged my doctor but she won’t be able to respond back since it’s after hours. Should I be concerned? Is this normal??