you wouldnt usually have clots during implantation, its usually bright red spotting, and very little of it, tbh id take a test just to see you never know! good luck :)
I would test. For some reason I spot about 6dpo up until this cycle 12dpo, when I got my bfp. You for sure could be pregnant. Use a early result test if you want to test now, but still test when your period is due.