I would suggest that you and your doctor try a different approach...and that is, to go up slowly in the dosage until you find the right dose for you rather than going back to where you were......
That is certainly a reasonable possibility to explore since it is usually recommend to stop psychotropic medications when pregnant...in order to be sure you would have to have some one dig deep into the research literature on this medication. Sorry to hear of your loss..
You could talk to your doctor over the phone about this, probably with no charge. In general, you should wean off this medication over a three week period...the first week cut dose down to lowest possible; the second week take that dose every second day; the third week every third day..then stop, but cover yourself with xanax for a week.