Why am I so freaking emotional..

You guys, my boyfriend is getting deployed tomorrow.. I've known this could happen, I've known it and I accepted it. But now that it's happening and so soon I'm freaking out. I'm panicking. I was okay this morning, as he left for work, but as I sat there thinking about it, talking my mom about it, I started to cry.. It took every ounce of who I am not to start sobbing. I guess that I haven't accepted it as well as what I thought I did.. Here's to a long 9 months... Feels as if I'm pregnant all over again (for the record, I'm not).. 😰