Very faint positive 8dpo...

So we've been ttc for about 4-5months. last 2 months we've had CP. Today I took a test knowing it is extremely early but I've been dizzy and feeling nausea. I don't have the best lighting to try and take a picture because it's very faint but has anyone else heard of a very early positive 8dpo without it being a CP? TTC this time around has been much more stressful than ever😖