Possible pregnancy?

Sarah

Today I’m 8 dpo and my period is due in 6 days on Saturday. Yesterday I had full cramps all day and then last night I got a strong pinching sensation on my left side it only lasted a minute or so. Now today all day I’ve had cramping that’s a little bit stronger like as if my period is gonna start tomorrow but it’s not and I’m super tired. Am I just overthinking this?