So, I think I'm pregnant but it's too early to tell. It would be about 10-14 days or around that if I was but everyday I'm feeling super super lethargic; my belly constantly feels like it's turning like I'm on a boat or something; I'm either super hungry ALL of the time or have a total aversion to food; my knees are aching so so badly and then today i noticed this black line down my belly and I've never noticed it before???