I gave my child pentaxim at 1.5 Mths. Now he is 2.5 Months+, but pentaxim is not available in market anymore (out of stock) & the distributor says, it could take 7-15 days for new stock. Please suggest should I hold on for 10-12 days (the child will be 3 Months then), or should I look for alternate (Easy five, pentavac, Tripacel, Boostix, etc). If alternate, then which vaccine is recommended. Also we did not take Hepatitis B, so should we go for it now?