Be sure that your partner is aware of how you are feeling and what he can do to make things easier. In the meantime, try to rest as much as possible and accept offers of help from friends and family. Several mini-meals may work best if your appetite is poor. Avoid caffeine and sugar as these may worsen symptoms. Also, try to exercise every day.
Exercise can ease depression.
Let yourself cry if you feel the urge to. Take time with your appearance every day. Spend time with caring friends and family. You may find that all you need to beat the blues is some TLC to see you through this time. I hope you will be feeling more like yourself very soon.