Nub & Bladder

Hi All,
I have attached two pictures from my ultra-sound. The baby was upside down so not sure if you can work with that.
I have also uploaded a bladder image as i read some people have been able to tell from this??
Thanks so much! x
Attachment 37588
Attachment 37589

Yeah, these aren't the best for guessing - what is the gestation??

Thanks atomic- this is 13 weeks gestation

I just can't quite say either way on these, I'm sorry.