Read thru how you want to apply RIR or NonRIR and EB2 or EB3. Your best bet would be RIR and EB2, but still takes long time, as of now like 4 or 5 years. Be preapred to stay with the same employer with the same arragements you made up with your employer.
To answer your question, if you have worked out all of the above stuff i dont think it's a problem.I am just an year ahead of you. But i applied on the first of my H1. You can play safe but apply as soon as you can.
Thanks,
Deepa.