[Love&Rockets]

Hello there. I think there might be a possibility that I may be pregnant but I'm not sure. The last time my boyfriend and I had sex was back in the last week of December and we used a condom but he pulled out way before he was even close to ejaculating because he felt the condom come off..we didn't continue to have sex after he pulled out but I was worried if pre-cum could have gone inside me..? I'm not sure. I had my period around the second week of January but it was heavy for one day and light for two days after that. I haven't had my period since then but it might be because I'm stressed..I've also had a problem with my period before because it is veryyy irregular so I'm not sure if I'm pregnant or I am having problems with my period again. I have not had any symptons of pregnancy besides a little moodiness but I think that's normal for every girl :// Is there a chance I could be pregnant?