catfreak - start the 14 days of the progesterone with oestrogen (grey tablets) and throw away the other set of 14 days of grey tablets. After finishing the 14 grey tablets, you will then go back to the oestrogen only tablets and you may find the bleed will be a bit heavier but you should be back on track quite quickly.
You could find you get some spontaneous bleeding sometime during the grey tablets but once you are back in the proper cycle things should settle. DG x