Onion Plantation from seedling

Dear members,

I am a farmer of Odisha.
I have planted onion seedling for 1 acres before 2 months.
Due to presence of rain till first week of November, I have not planted so far. The seedling plants are in good shape.
Can I plant these after 7 days without any harm in yield? Will these 2 month seedling give less yield?
Please advice.

Thanks in advance.