Early pregnancy sign?

Hey all, I’ve been feeling the quintessential symptoms of nausea, nearly vomiting, exhaustion, cramping in lower belly (not anywhere close to PMS cramps); however today I noticed that my lower belly feels almost tight or hard when pressed. The last time it felt this hard or firm was when I was regularly playing volleyball. I haven’t taken a pregnancy test yet as I am anywhere between 8-11 DPO.

Is this truly an early pregnancy sign like I think it is?