Since you say you're almost finished with Phase 1, I'm thinking you are talking about after you finish your 2 weeks, doing Phase 1 during the week and Phase 2 on weekends.
What many Beachers do here is what we loosely refer to as Phase 1.5. It is less restrictive than P1, but is more restrictive with grains than a full fledged Phase2. The concept is addressed in the SBD books when Dr A talks about adding foods slowly after finishing P1.
I hope this helps-if not, perhaps you can be a little more specific.