HCG questions

Starting first 500mg test e cycle soon and will run 250mg hcg 2x per week throughout cycle. 3 questions:

Do i begin Hcg on week 1 alongside test? Doing test e Mon Thur, so starting hcg on Tu Fri on week 1 is fine? Or should i delay hcg a bit

Does Hcg need to be refrigerated?

When do i stop hcg? Same time as test? So i go 12 weeks test and hcg, stop test and hcg, wait 2 weeks, then pct?

Thanks all!