I would say kits could be here any day.
I find a small drop in weight just before delivery, maybe a week. Then it stops for a couple of days, and kits are born.
I weigh once a week after I feel life to get an idea on when to expect kits, when I don't know the date of conseption. I usually feel life a month before delivery, and when I see a weight drop I know it's very close.
No two pregnancies are alike, nor are two dames.