DS 160 questions, please help

[dsf4r]

Hello,
I am filling out DS 160 and stuck at some questions. I would appreciate your help.

1. Previous U.S. Travel Information
Date Arrived
Length of Stay

I was F1 student before H1B, I came to US on 20-Aug-2014, went outside US on 10-Dec-2016. Then came again on 5-Jan-2017 and still in US. So, I can write date of arrived (20-Aug-2014) and length of stay (29 months) for the first trip. But I am wondering what should I write for second trip - arrived on 5-Jan-2017 and still in US?

2.Travel Information section
Have you made specific travel plans? (Yes/No)
Intended Date of Arrival
Intended Length of Stay in U.S.
I am filling out DS-160 and do not have any idea of arrival. What should I write for intended arrival date and length of stay?

Thanks!

[uhgar]

Calculate the months based on when you will be attending stamping. For ex if you are attending stamping on December from Jan 2017 to Dec 2017 (11 full months). Don't include December as you didn't stay full December