I have a small terrier size dog, this is second litter, first time she gave birth on 63 days from first tie, today she is 61 days since first tie, she didn’t eat her breakfast from the top she doesn’t look so big (looking underneath she is huge) she’s laying down lots just staring, I haven’t taken her temp as she was getting stressed with it, she seems to have a discharge around her vulva, is there anything I could look for to know when it’s time? Apart from the obvious puppy being born?

I would not leave her alone, it sounds like pre-labour...

Your right was pre labour, she’s had 2 so far