Yes this is a normal part and since you still have a couple weeks it sounds normal. With the strains im growing pistols will turn red and new ones will still come up til about the end of week 6 begining of week 7. Usually after week 7 on my strains most of the pistols are red by then and i rarely ever notice getting new ones, but depending on the strain your growing you may continue to keep getting new pistols even after week 8 or longer. Just my two cents on the conversation
*Disclaimer* All statements made above are purely fictional and hypothetically what I may do were I in that situation.