Panic attacks and anxiety during pregnancy

I have been prescribed Zoloft by my ob and I have been on it for almost 2 months now. I feel better than I did but I still have a lot of days where I’m scared of everything ( especially with everything going on in the world) and I just can’t calm myself down.. I was wondering if their are any break through medications that are safe for pregnancy? Also once I give birth can my ob prescribe any other medications to help me? I’m really struggling mentally and have been for a while now but this pandemic and everything has made it so much worse. I need help and I want to feel normal again so I can enjoy watching my children grow and enjoy my life as well. I don’t want to feel so down, scared and alone anymore. Please help if you can. Thank you ladies for listening to me❤️