Pregnancy symptoms?

Lauren • Momma to 3 year old boy with lucky fin. Married. Ttc #2

Okay I kind of already know the answer to this, I know that you should wait until your missed period to test for pregnancy so I haven’t tested yet i’m only 4dpo so it’s incredibly early. I know.

But how early can you experience symptoms? It’s not in my head! I have been cramping so bad today and i’m so dang tired even though I slept normally. Also, I have been sweating profusely today!

Could these be early signs? Or am I just crazy? Infertility makes me crazy!!!