Randomly bursting into tears.

Yesterday I was watching TV and out of nowhere I got really sad. The next thing I knew, I was bawling uncontrollably. Then I got upset with myself because I was crying for no apparent reason, and that made me cry more! About 20min later my fiancé came home and caught me crying so of course he's asking me what's wrong. I say I don't know why I'm crying....and that makes me cry more! Eventually my tears stop and he tries to talk to me. I start to say "my hormones are stupid this month".....and I start to cry some more!!!! Ugh! I'm never this emotional before my period. I've been EXTREMELY moody as well. Has this ever happened to any of you? By the way I am 4 days from my period and 10dpo.