So the last day of my period was a week ago. I had sex on the last day, (Saturday) without a condom for maybe like a minute and then he put on a condom for the rest of the time and then Sunday we had sex but the condom broke. So we bought plan b and I took it Monday. Today I was bleeding, almost like a light period, more than what I'd think would be spotting. But the blood is really dark and I have some slight cramps. I've read that the spotting and cramps are signs of pregnancy and I'm really worried....any help?