Actually...Women can start having some symptoms during the two weeks between ovulation and your period. There are even sites dedicated to what it called the "two week wait" where ladies can share such symptoms to give hope to other women waiting to take a hpt.
But...Your best bet is to wait until your period is due. Most tests will not be sensitive enough to give you a positive result until then if you are preggo.
As for the protection thing...I understand where you're coming from...But here's the thing...The "pull out method" is for couples who aren't actively trying for a baby...But who don't really mind getting pregnant. If you are trying to avoid pregnancy...You should .N.E.V.E.R go without a condom. Also it would help to figure out when you ovulate so you can avoid sex on your most fertile days and you should also try using birth control pills.
I don't want to sound like a nagging nanny...But you even acknowledged that you know you can get preggo this way...So it's seems really irresponsible to go ahead and do it anyway. I hope for the potential baby's sake...That you decide to keep it and take responsibility for this (sorry to say) stupid mistake.
I hope all works out.
Keep us posted,
melanie