OverKill and/or Estrogen Rebound ?

[Zombie]

I started with this

Breakfast: 1 MFX, 1 R2
noon - 3 IGF-2
Lunch: 1 MFX,
Pre-WO: 1 MFX, 1 R2, 3 igf-2, 4 Neovar
Post-WO/Dinner: 1 MFX,4 neovar
Before bed 3 igf-2

i did that for almost 4 day i wanted to spyce things alil bit and i added 2 things Anabolic Pump and Activate

Breakfast: 1 MFX, 1 R2
noon - 3 IGF-2
Lunch: 1 MFX,
Pre-WO: 1 MFX, 1 R2, 3 igf-2, 4 Neovar , 1 AP , 1 Activate
Post-WO/Dinner: 1 MFX,4 neovar
Before bed 3 igf-2

i like the feeling i get and how my muscles feel pumped
but im afraid that i could get a estrogen rebound or something estrogen related. SInce im doing 4 MassFX and 2 Activate i might add another activate just to test it out.