Difficulty getting pregnant

I dont think ill become pregnant for a long while due to the fact that im wayyy obese. 
215 pounds... Im 5'0.
Just hopeless. 
Husband deploys very very soon and im gonna eat wayyyy better.
Also stressing  alot before but calmed down now
And ive started smoking cigs due to stress but now its calm also.
I give up...😞💔💔💔