Is it possible to ovulate early?

My cycle is irregular which makes it so I rarely ovulate, but this month I think I was ovulating about a week and a half/2 weeks after my last period. My CM was raw eggwhite and probably a medium amount of it, which I normally don't have too often. Can that even happen? Also, little side note, all last weekend, I had dreams about being pregnant. Obviously that doesn't tell me anything, I just thought it was strange. Maybe a sign? Let me know what you think! Thanks in advance!