im kinda scared

okay guys so i haven't had a period in a couple months which kinda isn't that big of a deal normally since i have a really irregular period and it used to do this all the time when i was a virgin. but lately i've started getting really bad mood swings like i cried 3 times today for no reason. so i'm having a problem of figuring out if i'm pregnant, if my persoon will start on time (2 days) or if that seasonal depression is kicking in. any takers?