Thanks for clarifying! Following your advice I  was getting an error trying to do what you suggested:
AttributeError: 'Generator' object has no attribute 'module'

And when I printed my state_dict() using print(Generator.state_dict()) I got this:
 ('main.10.weight', tensor(<size>),  device='cuda:0')

So there was no module term in my weights.
But, I think I fixed it!
Checked my model class definition and found I had the condition:
if (device.type == 'cuda') and ngpu > 1:

    netG = nn.DataParallel(netG, list(range(ngpu)))

So I simply removed the condition of ngpu > 1 and it works fine now 
Thanks again!