Dreams that are getting to me...

For the last year I've had random dreams of my ex.. He became an ex 5-6 years ago, we were good friends up until he got a girlfriend about a year-year and half ago then he stopped talking to me completely... I've been with my SO For 2.5 years. But ever since I got pregnant, I have dreams about him even more often!!!!! I think there's only been one sexual dream, otherwise every single one of them is about us getting back together and talking about how much we fucked up for breaking up all those years ago and never giving it another try. 
I absolutely love my boyfriend, more than anything! I can't wait to bring our baby into this world together.. But when I have these damns dreams, and now so often, I can't help but think it's supposed to be a sign... That my current boyfriend maybe isn't THE ONE even if I feel like he is.. My ex will always have a spot in my heart too though, he was my best friend for so many years!!!
Put your self in my shoes, what would you think of it all?