Rewatching all the old episodes from season 5 and 6
Im now wondering if Rory might be River's and the Doctor's Child

Day of the Moon, Amy says that here life changed when Roy dropped out the sky

We have been informed that the Doctor had a family but havent been told any more

Maybe the Doctor and River Brought Rory to earth when he was young.

In the episode the Doctor's Daughter Jenny was shot and appeared to die , after the doctor left she came back to life

Maybe this is why we have been shown Rory dying and comming back to life so much lately

My thing on Rory 'dropping out of the sky' is that it's related to 'A Good Man Goes To War'.

I think by that point Amy had been switched, and as the message thing was still connecting to her thoughts (despite whatever time/place she was) and she was already on Demons Run.

And of course, The Doctor and Rory 'dropped' out of the sky to save her.

No, no - obviously The Doctor is Rory and River's daughter.

Rory's parents are at the top table in the 26/6/2010 post Big Bang II scenes, played by supporting artists.

The Doctor had at least one child and one grandchild before the Time War, refernced in The Empty Child.

And then Jenny, Child of the Machine ...

I think you'll find the grandaughter was a major character for a few years

Susan, yup, last seen onscreen in The Five Doctors