Input Claim For Qtrly filling GSTR-1

It doesn't effect you. you can claim input current month itself.

As  per  section 16(2)  of the CGST act  2017  you have fulfill  following  conditions  to Claim  ITC 

1)  you must  have  valid  Tax  Invoice  with correct  GSTN  no of the supplier 

2)  you must  received  Goods  or  Service 

3)  Supplier must  pay Tax to  Govt  account  collected  from you 

4)  you must  file return 

As per new rule  Invoice  should  reflect  in GSTR 2A .