I couldn't more terrified.

So to keep it sort I am mortally terrified I might be pregant. My cycle is very 19 days so I ovulate really fast. I had sex with a condom on the last day of my period and my partner did not even come at all. There was precome in the condom but I checked it and there were no holes. The problem is is that I had l it very light bleeding three days afterwards and I've been constantly have very slight cramps since. Today, we had sex with a condom three seperate times and this time and made sure he pulled out on time. We checked all three condoms no holes. My period is 6 days out and I just don't know what to do. I'm only 17 and can't raise I child. I can't even love myself and so lost right now. Would you guys be stressing? How do you day stay so calm. I'm at the ends if wits right now. I need advice.