Hi, I agree with remar, you will be fine if you stop the drug now.
I am so sorry for your loss, and grief does take its toll, but does not, in most cases, need anti depressants. You can always go back to the doctor if it all gets too much.
Take care
Always ask your Dr first. But, in my opinion, you should be just fine since you've only taken two doses. I'm so sorry to hear about your loses. Grief is normal after a loss and does not always requite medication.