Implantation bleed or chemical??

[Cienega]

I just got my bfp today and I’m over the moon. I got spotting yesterday that was a mix of brown blood and bright red, it also had some tiny bit of tissue in it. I’ve had no more since and back to normal CM. My symptoms today are strong and my frer is a decent line for 9dpo but I can’t help but worry that the spotting was an early miscarriage or something? Would love some reassurance xx pic of today’s frer attached

As you say, that's a good line for 9dpo! Obviously there's no guarantees, but if the bleeding has stopped then that's a good sign. I had bfps from 9dpo and then period-heaviness bleeding on my period due date and the next day. Thought I was having a chemical but everything has been totally fine ever since and now 17 weeks. With my first baby I bled every day of the first trimester and have a healthy girl now. Fingers crossed.