Need some advice

Melissa • I'm 26 and this is my 2nd pregnancy. I have a 5 year old daughter . I am beyond excited for another baby and can't wait till August
I'm 18 weeks today and saw my Dr .. I am suffering from depression and they gave me Zoloft.. has anyone taken antidepressant while pregnant is it safe? Is there any other options to help without the constant stress of my depression on my baby?!