Early signs of pregnancy?

Tiffanie

Today I am 7dpo, and the last 2 days I've experienced really hard abdominal pains, they were sharp pains on the left side of my stomach and also non stop headaches. But this morning I was woken up with the worst nauseating feeling, but didn't get sick. More/Less sat on the toilet for like, half an hour. Could this be early signs of pregnancy? Or am I just going crazy?