@SarahAhmed,
What country are you living in? A lot of countries, in the west at least, sell pregnancy kits over the counter. They are very good, but it might be too early. Go out, buy a kit and read the instructions, if it's too soon to take the test you'll just have to wait.
In the meantime sort out a proper form of contraception, the pill, a coil, condoms, dutch cap, something. Stop using the ecp this way, you're abusing your body.
And you can't get pregnant if you just have oral sex, no matter how much you swallow. It just gets digested like everything else, (except tomato skins of course.)