I submitted my Primary in July 2016, took my MCAT in August and received my score in September. I received an onslaught of secondaries in Sept, but wrote my secondaries early. I was completed with most by late september, finished late October... I think it definitely hurt my chances, but it didn't keep me from getting interviews and acceptances! Several schools sent secondaries without having seen my MCAT score, and so the timing worked out well. I always recommend to people to have their score before they apply because you know what you have, it helps you make your school list, and it allows you to apply ASAP. Your timing however is much better than mine and I think you'll be fine as long as you do well on your MCAT!