Hoping for a positive.

Last period was September 20th. I guess I'm a 30 day average cycle. I've been tired lately, my boobs start hurting today. And I feel like the area around my nipples are dark almost like when your lipstick wears off and your lifer with dark outsides on your lips. I've also been super boated and constipated like I can't use the bathroom #2. I don't know if I'm just paranoid. Is it too early for symptoms? Praying for my miracle baby!