This is all just opinion and my 2 cents.
If I have a female the size of yours I will feed them sparingly for the first couple of feedings, with plenty of fresh water. I do not feed them every few days but will feed once a week for three weeks to a month.
I then put them on their normal feeding program of every two weeks, all my females have low body fat and are all lean and muscular animals. I don't like to push them hard after giving birth because I think it is not good to have them with food digesting all the time, as their bodies have just been through a lot.
I have found that my females bounce back very quickly when the are lean and mean as opposed to the fat and healthy females I kept in the past. Boas are ambush feeders in the wild so they don't get the pampered care and steady supply of food that we the keepers offer them in captivity.
I try to use this as a guide for my feeding schedules, even though by Mother natures standards mine get fed way more than wild boas. Here in the hobby I think we get caught up in producing every year and trying to get back our investments, boas will breed for many years and their health is a direct factor in the size and health of their litters.
If my females are not ready for the next season then that is just the way it worked out and everything will be that much better for next season
There are a few schools of thought as to how often and how large a prey item should be offered, all the above are what I have found has worked best for my boas not what works for me.
Hows that for the opening request for a discussion LOL...
Be well.
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Joel Thomas

Don't tread on me!