Rage and irritation?

Is anyone else feeling this? I’m almost 24 weeks and all of a sudden the last 2 weeks I’m just extremely irritable and fly off the deep end for small things. I’m feeling very overwhelmed over things that I shouldn’t and I just want to be able to regulate my emotions better! This is my third pregnancy and only with my second did I get depression, but this is something totally different. I have also been on Zoloft for 2 years and really don’t feel it’s helping me right now. Where the heck did these hormones all of a sudden come from to make such a difference?! I know I’m burnt out at work and that can make it worse but that comes and goes in my job, even without be pregnant, so I don’t see why I can’t handle it now! Any other mamas feeling like this?