thoughts on implantation??

Hi there! I’m currently 9 DPO today. I’ve been experiencing long brown discharge for the last 4 days- it’s really only 2x a day so it’s not bad at all. I’ve also been having cramps as well- not like my period and not like ovulation. Just like little here and there cramps. As well as some mid and lower back pain, and my breasts are extremely tender, and I’ve been pretty bloated and had an upset tummy. That and I’m just feeling weird, idk if that’s even a feeling? Given that I started feeling all these symptoms recently and I am still a bit away from my period (like 5-6 days), could I be going through implantation?

I would’ve thought that a FRER might’ve picked up some hCG levels already but I took one this morning and it was negative. Also, my cervix position is currently high and soft so I’m not sure if that changes anything either.

When might I expect a positive test if I was going through implantation?

I dont know, it’s just that like if this was my period, I normally don’t start seeing PMS type stuff until the day before hand for me. So having it over a week before my period starts is definitely different?

What are your thoughts?? How long did it take you to get a BFP from implantation?? If I started getting brown discharge 4 days ago, when might I expect a positive test?

I’ve never had discharge like this before ever. I know implantation spotting is uncommon but I’m pretty certain this could be it from the sound and look of it. It’s like brown and long mixed with my CM.

Has anyone ever been in the same boat?

Thanks everyone!!