Weight loss

Hi everyone. I’m on day 8 of being on the Keto diet. I started at 70.5kgs (sorry I’m Australian hence the kilos) and I’m a female. Today I weigh 66.7kgs. That’s roughly around 4kgs in 1 week. I understand that it’s mostly water weight and that rapid water weight loss is normal. But does this mean I won’t lose that much more as I lost 4kgs in the first week?