Can you get demoted if i havent won a game in my division yet?

well i got promoted to silver 2 a couple of days ago, i grinded ranks and got a 5 game winning streak so that brought me to silver 2 promos. After getting my silver 2, i havn't wone a single ranked game yet but lost around 3-6 games (still at 0 lp) i was wondering, can i get demoted?? or do you actually have to win a game then loose (get to 0 lp) and get demoted.

TO SUM IT UP::::: Just wondering, is it possible i can get demoted if i just entered the silver 2 league and havn't won a ranked game since? (i've lost like 3-6 in a row)