If you don't have CO2 yet, your best bet is to add priming sugar and set the lid as best you can. Burp it, if it has a relief valve, the next day. If you don't get any gas release, it means the lid isn't seated. This isn't a problem, as the CO2 is just leaking out as it is created. The important thing is it has displaced the air. In this case, you'll have to force carbonate when you get the CO2 rig.
Remember one unassailable statistic, as explained by the late, great George Carlin: "Just think of how stupid the average person is, and then realize half of them are even stupider!"
"I would like to die on Mars, just not on impact." Elon Musk