I have had sex recently and my boyfriend used a condom. We also made sure to use a good amount of water based lubricant to prevent the condom from tearing. I also check for tears. I am not on birth control, and am feeling signs of cramping and my period should be here in about a week. I have irregular periods. My bladder also seems to be getting larger but i think its from feeling a bit bloated. This happened about a month ago. What are the chances of me being pregnant? I am starting to get nervous.