Weird symptoms

So my period is supposed to be here in 3 days. Usually a week before my period I get random cramping and I can just tell I'm about to start. Well I haven't had any of that. I'm feeling really weird, I'm sleeping a lot, crying a lot, lately I cook something and when I go to eat it it makes me feel nauseous and today the smell of beans made me gag. I had spotting like a week ago for like 30 min if that. I'm on the pill but missed some doses cause I lost my pack. What's going on