Yes, they could be absorbing too much fat and your body needs at least some fat to ovulate.

Dropping them a few days doesn't usually do anything terribly dramatic, though. Hormones take time, and doing something just a few days often doesn't suffice. Personally I don't think you ever needed the myoinositol and should probably just drop it all together. I often don't use fiber for slim nursing women at all anyway so feel free to leave that out as well; since you're on the alternate diet you should be getting a fair bit thru your diet.