Thoughts please...

So I was supposed to get my period June 21st it didn’t show until June 27th had a period the 28th then spotting (brown discharge) my birthday (the 29th) then nothing my period usually lasts a week. Yesterday and today I’ve been nauseous when I eat, my nipples are a little sore, light cramping/ pulling in uterus, headaches, and tired. I’m dealing with a lot right now so idk if my period is throwing my hormones off or what? I haven’t taken a pregnancy test only because I’ve taken so many before and get my hopes up for nothing. Thoughts....