Implantation or period?

I have a question. I'm 5 weeks and 4 days pregnant. Since Tuesday morning, I had a bit of brown discharge, and later that evening, I got bright red blood. The next day, I had brown discharge at one moment, red at another, and sometimes nothing. I've had the same today. Now I'm a bit scared. I hope it was implantation bleeding. I wonder how long this lasts if that's what it is, and I'm curious what other women have experienced. I haven't had positive tests yet. I called my midwife, and she said I can only test next week.

I really hope nothing went wrong! I did have symptoms like nausea when I didn't have bleeding yet, white discharge, and a lot of pimples.