Brown discharge?

Hi guys, just wondering if this is normal?

I’m 7 weeks today and yesterday I had a bit of brown discharge with mucus. Just once when I wiped. Now today I just went to the washroom and there was a lot more, my pee was tinted brown?

I had a chemical in May at just over 5 weeks so I’m really hoping this isn’t the start of a miscarriage ☹️

My first ultrasound isn’t for another week and a bit. I called my OB and they said just monitor???

Thank you!