Expired test?

So I had a Clearblue digital test on hand that expired 8/31 and just took it. I got a BFP. I know with it being expired there's a possibility of it being inaccurate but what do yall think the chances of it being wrong are? I'm currently 11 days late. Started light pink spotting today. Not much, but every time I use the restroom and wipe it's there. I'm afraid I've jinxed myself. Had a previous ectopic pregnancy and only have one tube. I'm terrified right now, like I don't even want to tell my husband until I know it's real.