35 days since what?

How far is the first eggs from the vent?

The 30 days between pre-lay shed and egg laying is a guideline and an average it can take longer based on the female itself and your temperature, I have had a female this season that laid her eggs 53 days after her pre-lay shed, granted it is far from the norm it can happen too.

Generally speaking my females lay 40 days after pre-lay shed (I do keep my animals cooler than most people)