Meltdowns

Amber • SAHM to a beautiful, smart, energetic 2 year old boy and his newborn brother!!
My almost 2 year old son has been having some major meltdowns over seemingly nothing here lately. It seems that the closer we get to our due date (2/13/15), the more he has and I have literally tried everything. Talking, time outs, etc is not working. Is anyone else dealing with something similar? How did you deal with it?