The main reason for the Bitcoin price drop is Etfs and hard fork and mining difficulty all these reason resulted to bitcoin drop hoping for recovery in second quarter of 2019
Yes the major reason behind is Hard fork and mining difficulty making the price drop of btc and also there are no new people investing on bitcoin and lot of people are withdrawing there amount from bitcoin in panic and in fear of loss makes more price drop to the market. We want investors to believe and be confident on crypto market and hodl the coins in wallet in order to achieve increase in the price of bitcoin.