I'm with vanilla - I'm just lucky and shocked to be here at all, there could be no timing it for us.
When I had Xander it was pretty busy, there was a lady in maternity triage using gas and air and screaming like a crazy lady waiting for a bed. And then I came in, my contractions had stopped but I had pre eclampsia and they sent me through before her. At the time I barely noticed, I was feeling so shitty, but afterwards I felt really guilty about it!
The hospital was full the whole time though, there were no empty beds on the ward and one of the ladies that was next to me had had an emergency section at 24 weeks. It was so awful that she had to sit on the ward with us and our massive babies while hers was so poorly, it took them two days to get her a private room.