Nail bitting experience

My DH and I are TTC. according to glow i have 5 days left until AF comes, however, I have been experiencing Nausea pretty much all day, esp when I eat and at night, sore boobs, constipation, mild cramps and tugs in my lower abdomen, been extremely tired, and seems like i have a cold. I can't eat large meals even when I'm starving, but I am hungry like every hour. Also, my areolas are dark and have def grown. my DH is the one that noticed. I have been forgetting a lot, sensitive and crying at random things I wouldnt normally cry about, I have mood swings. I don't usually experience this I know I still have time to see, but what do you think?