I was talking to a member of the VentureWrench community the other day and we were talking about the calendar, we are now in May, and Phase I reviews at NSF for Decembers submissions were reviewed generally in February and March. NSF Program Directors reach out with questions and clarifications, usually in April. However, there are proposals marked in Fastlane Proposal Status section (soon to be on Research.gov) that are still “pending”, but the team hasn’t received any questions.
I recorded a short video for you discussing the nuances of gauging where your proposal is. Some of the details are about NSF, but every agency has its review rhythm, so listen for concepts that will apply to every agency!