Could I be experiencing either pregnancy symptoms or menopause?

i'm 19 years old and I have a 1 year old daughter. I have been having hot flashes, moodiness, tenderness, leaking milk, cramps in the lower abdomen on the left side and middle, also frequent headaches, I can't sleep at night. I haven't started my period this month, it has been 6 days. I haven't taken a htp yet. so do you think I could be pregnant or menopause??????