You can buy now. For bitcoin it is not a big price right now. But it will recover it's price very soon.
I also believe that this is the right time for us to buy bitcoin. You can see that the price of bitcoin at the moment is at $ 8000 and according to my analysis this is the lowest price in this adjustment. So you can buy bitcoin at this time, and the bitcoin price could hit $ 11000 in the next price increase.