6 pack in 3 months?

Hi my names mike and Im 16 almost 17. I have been working out for the past 3 1/2 weeks. Mostly my upper body(arms chest and abs) Ive been drinking alot of protein shakes and taking some strength pills and vitamins. Im naturally fit, never been overweight in my life. Im 6,2 and weigh 157 pounds. I do workouts about 3-4 times a week and ab workouts every other day. ANd since summer is now coming up im gonna be doing lots of workout for next year. I was woundering if in the next 2-3 months i can get a 6 pack. Again ive been doing ab workouts for the past 3 weeks and I have a I guess..4 pack so far. Not visible alot but just a little. Like when I flex them you can see the top ones good the middle ones kinda good but not lower ones yet.

I do bicycle crunches, Leg crunches or how ever you call them, I do the one foot up in the air crunches and regular crunches. I do about 3 sets of 20-30 of each.

So I was woundering If I keep this up for the summer would i be able to get a good 6 pack?