Yes it's possible, but since you're on the pill the chance of pregnancy is not that great.
I've been in your position before, using condoms, thinking I was protected, and had a condom break on me and us not notice. (It broke in like, mid last-stroke. Insane.)
Unfortunately there's not much you can do but to finish your pill pack and wait for you to get your period. You won't be able to do tests for pregnancy until after you've missed your period so there's no harm in continuing your pill regimen for now.
As far as using almond oil for a lubricant that's not such a great idea. Oils tend to make latex condoms deteriorate -- look for something specifically formulated for condoms, something WATER SOLUBLE, water-based doesn't do it good enough, and avoid anything with 'glycerin' listed in the ingredients list. It's hard.
You can also order polyethylene condoms off of the internet -- do a search for condomania -- or even just 'order condoms' and 'australia' to find companies that ship to australia. Polyethylene condoms don't stretch as much as latex ones, so you might want to get a variety of sizes, but they are OK to use with oil-based lubricants.