Losing baby weight after loss

Hello! Starting out at 230lbs 5'8 and trying to lose an inital 40lbs by march for my cruise. Overall I would love to weigh around 140lbs.

I became pregnant in July 2015 and unfortunately lost my son due to a brain bleed at about 19weeks. I had the d&e procedure last week and bleeding has since stopped and Ive gone back to work. Before baby I was the same weight I am now and had lost the few lbs I did gain via the d&e. It was a rough ride but now Im ready to get super healthy and skinny.

Ive been told getting pregnant again may never be in the cards for me so Ive decided to refocus my emergy into perfecting my body. Anyone in a similar situation?