Confusion, advice needed please!!!

So I'm 6dpo and I've been experiencing nausea, dizziness, fatigue, sore and swollen breast and I've been very emotional. I had this before my fertility window and my ovulation day, so I don't know what to think. Normally I have these symptoms (minus dizziness and crazy mood swings) and it's a false alarm, I hate being let down like that and letting my fiance down as well. It's too early to test so I just have to wait and see but in curious and I really want to know. Any advice?