Eligibility for Partners to Apply for ILR

Hi, everyone.

Sorry, I think I previously put the content in a wrong area. Hope the moderator could delete them, please. Thank you.

As a Tier2 Dependant visa holder, I am currently preparing for ILR . Do you think I am eligible to apply for the ULR together with my husband? Thank you.

We got married before I came to the UK for the first time and lived together since September 2012. My husband's visa records:

2010-2013: Tier 4 Student
2013.9-2018.9: Tier 2 (general)

My visa records:
2012.8-2014.1: Tier 4 Student ( I got married before I came to the UK in 2012)
2013.10-2018.9 Tier 2 Dependent.

In 2016, my husband was asked by his employer whether applying for 3 years' visa or 2 years' one. After checking the government's website, we noticed the following parts:
" Your partnermay qualify if all of the following apply:
they have permission to be in the UK as your partner", we decided to extend only 2 years rather than 3 years. However, right now, some people said I have to stay in the same visa route to qualify for 5 years' eligibility, is this right?

I think as my husband's partner, I have permission to be in the UK since 2012 and have lived with my husband in the same address for more than five years, therefore I meet this requirement. Furthermore, the official document did not mention any route issue at that time and does not now.

By the way, I submitted my first Tier2 visa application in 23, Sep, 2013 which was issued on 16, Oct, 2013. Since my current visa will expire in 14, Sep, 2018, am I still eligible to apply for ILR if I submitted the application before 14, Sep, 2018?

Thank you for your help.