Depression, confusion and fear during pregnancy is a common phenomenon. Around 40% of the pregnant women face this problem. During pregnancy, there will be hormone fluctuations which can affect the brain chemical. This action would lead to depression and anxiety. Sleep at least7-8 hours is must for everyone, especially for pregnant ladies. In this situation you should not take even pain killers which might affect the baby. So, could not imagine about anti-depressants. Better you consult your Gynec, explain about your depression and insomnia. There are many safe treatments are available say support groups, psychotherapy, light therapy. You start doing meditation, count from 100-1 while on the bed, read some comical story books. Take proper nutritious food, add omega 3-fatty acids. I pray God for your healthy delivery.