HI robinzaa, and welcome to Scarleteen!
Based on the situation you described, there is very little risk of pregnancy. (You can read more about what constitutes different levels of risk over at
Can I Get Pregnant or Pass on An STI From That?.) In addition, the ECP on the 30th interrupted your cycle and most likely delayed your actual ovulation date, because your body is still responding to having been given that ultra-mega-dose of period hormones within the last day or two. In all likelihood you will experience some bleeding and irregularity with your cycle for the next month or so, because everything's sort of been reset.
Also, just as a quick note, we usually recommend to users that they use EC as infrequently as possible if they can help it, simply because it puts stress on the body to constantly be exposed to those high doses of hormones (not to mention, there isn't much research about the long-term effects of frequently using EC). So while it's super helpful to have it when you need it, EC shouldn't be relied upon as a backup method of birth control. Like the name says, it should be used mostly for emergencies.
From what you've said, it seems like you decided to try using condoms and/or using the withdrawal method to try and reduce the risk of pregnancy. Do you have any ideas as to why the condom ripped this last time, or how you might prevent that in the future?