Pregnancy symptoms

I feel like I’m getting some pregnancy symptoms (or I’m just making myself have symptoms because I want to conceive so bad) but yesterday I randomly got a really bad headache and some extreme mood swings. I don’t really get headaches and when I do i know what’s causing the headache, but not this one. I would say I have mood swings a normal amount but yesterday’s was different. I’m not a depressed person but it got deep and that’s not like me. The last one is last night I randomly got very nauseous. I didn’t actually throw up but it came out of no where and I know it’s not period related because my period doesn’t start for another four days and I never have cramping this far from my period. Not necessarily looking for answers just wanting to talk about it. Crossing my fingers this is my month.