Crazy emotional

Destiney
     I am 10 weeks 5 days along with my first. I've felt pretty even tempered though extremely tired up till now. My morning sickness seems to have tapered off a bit which I am grateful for at this point. 
     However, today I feel as though I could cry for any reason or no reason at all. I'm assuming this is normal but also hoping it won't last forever. I have a fairly high stress level job and feeling like I'm going to cry all the time won't do me any favors at work! 
Any advice or tips on how to manage these feelings?