Brood mares?

I used a brood mare with one of my stallions, and now it's still stuck on "will give birth in 5 days" is there something I need to do now? I am confused...

The owner might have locked the brood mare, so her gestation period doesn't run while being locked. She won't be able to be bred again after it says 7 days since last bred on her page.
Though with using a broodmare the foal should be linked to your stallion. Just as long as you don't lock him, the foal should be born after 5 days.
If he isn't born after 5 days, you should probably report it in the missing/late foal topic on the bug board.

Come to think of it, with the manual cron nowadays, it's quite posible just hasn't logged on/progressed yet, so the days on her page stays the same, just like while being locked. But it shouldn't affect your foal.