Antidepressants (36weeks)

It's been one week since my dr put me to do therapy and prescribed me zoloft 50mg for severe Prenatal Depression and I already had General anxiety disorder, PTSD, for years, but never decided to try medication for it. This medicine has made me feel completely out of it. Numb to emotions, sick to my stomach, I feel like shit. I havent been eating much, my eyes feel dilated, I have dry mouth, insomnia and I'm nauseous.. does it get better? I mean, I feel it's taken away just about all my anxiety and overwhelming overthinking, the depression seems to be in the dark corner still creeping on me tho