6DPO OPK strip


Im 6DPO and feel super nauseous, not sure if you can even have symptoms that early so maybe it’s just a coincidence. I am supposed to start my period in 8 days and wasn’t going to buy pregnancy tests until/if I don’t start so I decided to use an OPK strip just to see what that shows.(I know not to use these as pregnancy tests) Should the test line be that dark for being a week before AF? I was expecting nothing to be there or it being very faint..