My sex dreams were 100% straight until I had sex with a guy for the first time at 22 and with a few more guys not long after that. For a short while my dreams were 100% gay which caused a gay crisis--you know--the age old question "am I straight or am I gay?" For a couple days I made plans to come out as gay but before I could do it the straight sex dreams returned in force.
What happened is that repressing the reality of my same sex attractions made my sex dreams go 100% gay. Once I admitted I was gay I stopped repressing it and my dreams returned to a mix of straight and gay. Over the last 40 years my sex dreams have continued to run 90% straight 10% gay overall.
Dreams do this. They correct imbalance caused by repression to restore the psyche to its own natural balance. That might be what's happening to you.
That said
@Richiecable may also be right: you're currently in a period of time where you're more attracted to men than women. Those happen to me too.
You could also be in a phase where you are repressing same sex attraction and your psyche is reminding you who you really are. Those also happen to me.
Your call.
