Congradulations on deciding to compete!
It's good that you got a trainer if he knows his stuff and he isn't charging you a fortune. A good trainer will make your life much easier while contest prepping.
While preparing for a show you have lots of stress so if you can avoid some of it go for it. You wont have to worry about making a diet, constantly tweaking it and always re-evaluating yourself because you don't feel on track.
It's good to have an objective eye on your physique to tell you that you are on track but I am too cheap to pay someone for things I already know
If you are cheap like me then you can avoid the trainer and just started posting on the competitors board on Anabolic Fitness.
http://anabolicfitness.infopop.net/2/OpenTopic?a=frm&s=702093973&f=2540953661
You can post your progress there and pics and we will give you honest opinions on how to make it.
My last show I started dieting 12 weeks out and at that point I was 12% (too fat). I was not ready for the show.
On the calipers 7-site method I was 4.3% but I didn't look ready. For my next show I will aim to get at 3% by the caliper. In real life that is about 6%. If a pro BB would be tested by a caliper test usign the 7 sites on contest day they would be about 2% or 5% in real life.
I suggest you to start 16 weeks out if you are ready before the show then maintain your condition atleast you will have time to be ready and if you are using the calipers as a guide aim for 3% not 5-6%.
My first show I was 5% on the calipers and I was the fatest man on stage
Now the drugs....
I recommend being on for the last 12 weeks. Test, Winny, Eq, Fina and Primo are the AAS of choice.
I say start stimulants only 8 weeks out. Alternate 2 weeks clen and 2 weeks ECA.
Use T3 for the last 6 weeks in this fashion 25,25,50,50,75,75
Cardio start off with 20min per day and buildup from there. Don't go over more than 2 x 60min per day.
Check the competitor board for the last week details..