I need advise!!!!!!! First time ttc????

Minouchka
I am 3 days late of my menstrual. I been feeling nauseated in the morning for the past week on my drive to work. ( just the urge.) my breast are tender a bit and nipples are very sensitive. My emotions run crazy some days. And lately I fall asleep earlier than I normally do. Can someone please help me!!!!!!! Thank you in advance