This is my current situation: I am currently living in India. Me and my husband travelled to India in Feb2018. He returned to USA in 1month after getting his visa extension done. I have H4 visa stamping on my passport which was valid till 10 May 2019. I have my husband's I797 which is valid till 12Dec2019. Due to some personal reasons, i currently don't have my husband's supporting documents with me. Hence, I have attempted for F1 visa and tourist visa but my visa is getting refused every time. Can i apply for h4 visa extension with my husband's I797 which is still valid till Decemebr2019?