With a litter the size of yours. I strongly recommend you order the following:
Revival Animal Health - Oral Cal Plus #60210-493
Keep it on hand. Speak to your vet about calcium supplement tablets
This is what I suggest that you do to help prevent eclampsia:
forget everything about giving tums, cottage cheese, cheese, icecream.. etc. It’s useless. The body needs the calcium to be delivered with the correct ratio of Vit D and Phosphorus or it doesn’t absorb it, it’s useless. Pet Cal has this correct ratio. Another thing that has it is, believe it or not.. a scrambled whole egg! Of course everyone knows not to start calcium until the litter is whelped.. no giving it to PG bitches… I do give some calsorb during whelping If things slow down on a larger litter, but never before whelping. Make it a general practice to scramble your bitch an egg every day, and depending on weight, give ½ to a whole pet tab per day. I gave it to a 8 lb bitch ½ in the morning ½ at night…this is the “daily dose” for about a 20 lb dog who was NOT nursing a litter…so just fine for ½ the size, but nursing a litter. I would grind up the pet tab in the food processor and put the powder in the egg when I scrambled it.
Do the above and make sure she gets at least an hour a day of sunshine for that vitamin D.