I think you should not worry at all. On the website it says that after you receive your NOAs the biometrics letter usually comes within 30 days. So you still have time and it may take them even longer than those 30 days (let's hope not). I would wait until July 14th and see if something happens. If you still do not receive any letter by that time, then call Customer Service and they will be able to help you because it's going to be 30 days already. Otherwise they may just tell you to wait and call them back after 30-day mark... My husband was in a similar situation when he was in the process of getting his citizenship. He had his FP done and then nothing was happening, so we waited exactly 1 month and he called USCIS and they filed a request to the USCIS asking to explain why it's taking so long. Within couple days we received interview letter Good luck!
@velvet tuberose: I agree with 2much2handle, wait and call them if it doesn't come within 30 days. Most importantly, DO NOT WORRY You will be fine! good luck to all!