I firmly believe that my rabbits put their heads together at night and ask each other, "how can we drive her crazy today?" What you have described is an old card in the "drive her crazy" game!
Unless something went really amiss, I wouldn't think absorption of the litter would be too likely. Most does that are doing a false pregnancy quit around 3 weeks, though I have seen a few that went 31 days and went through all the motions, only to produce nothing. IME, most does don't actually pull fur until just before or after kindling, though I have had a few that started pulling fur even a week before. Until you have had a litter or two from this girl, you can't be sure what fur pulling from her really means!
Often, when a doe is carrying just a few kits, she will carry them longer. Most of the time, if a doe kindles on day 34 or 35, she has only one or two huge kits, and they don't survive the birthing process. Rebreeding a doe within a couple days of a failed litter like that usually results in a nice sized litter the next time.
If this were my doe, I'd give her a couple more days. Or, if you really want to know, you could pull her out of her cage and palpate her - babies that are towards the end of the gestational period are big enough that they'd be hard to miss. If I couldn't find any kits inside her, I'd breed her again, today. I'd be sure that the buck "did the deed" (grunted, fell off) and I would note the breeding date on the calender - the next litter should be a good one.
Good luck!