Nope, I don't think you're late in buying bitcoin. It is still undervalued, and though it plummet agan in the next days, one thing is for sure, it will soar in the long run. But of course to be safe always wait for a pullback so that your profit will really be worth all the stress in trading. Surely, there will be a pullback in its current price. Don't rush when in comes to buying and don'make stupid, impulsive move.