I mean that seems like quite a big jump. Not gonna tell you not to do it, but take in mind two things. 1. increase your mileage slowly, don't just go from running say, 10 miles a week to 20, you'll get injured if you do. 2. Make sure a good 80% of your runs are easy runs, in order to build aerobic endurance (and by easy I mean EASY), and do 400-800 meter intervals fro your speed workouts to get used to running faster for the rest of your running volume. If you'd like more advice feel free to DM me, I ran my best 1.5 miler in 9:44 if it helps with crediblity