Advice.

Hey guys. I'm 15 weeks pregnant and I feel SO sad and upset 99% of time. We tried for a baby for 3 years and we are over the moon excited. But these past couple of weeks I have been struggling with anxiety (which I've had all of my life) and depression. A lot of personal things are going on as well. I gained custody of my niece & 2 nephews, we are building a house, I'm in school full time & that's already stressful enough, I barely see my husband. I just feel so sad. I'm not sleeping. I'm just not sure what to do to help myself and my baby. Help?