Only buy if you're willing to accept a +50% loss. You never know when it's going to happen, and if you're asking here you probably don't have a clue either.
Don't buy if you have things pending like debt, strong family commitments.
Remember that this is a "risk" investment and well it has to be money you can't count on in case of an emergency.
I'd only buy if you're willing to accept a 100% loss, don't use money that you have a need for right now. This is a risky investment still but this is all my opinion, do your own research.
I was talking about 50% because of the drop we had recently, but as far as the risk of losing 100% I think it's almost zero, the only way is to get it to 0, and there are still a lot of decimals from 0.1 to 0
p.s: Although I'm not insinuating that I'm bearish against the price of Bitcoin.