will bitcoin continue to rise at the end of the month or it will have a sudden drop?
In my opinion bitcoin is rising because of the halving hype. And it should be, too. Because halving is supposed to give miners less reward, thus less bang for their buck essentially. So the miners will not sell their coin, until they can make up for their losses.
And when that happens, there will be a sudden drop in the supply of available tradable coins, and when there is a short supply, the price always goes up. And people are sensing that is going to happen too, so they are buying before the halving happens.