I recently had sex with my boyfriend and he pulled out and never did cum. I know there is still a chance of me being pregnant and thats why I've been worrying myself sick. So I've been having a few symptoms like, nausea, change in diet, lower back pain , and cramps but if I am pregnant I only have been for just a day before a week so are any of those symptoms even possible? Also I've noticed that most of the symptoms go away when I'm calm and not freaking out about the situation except the cramps and back pain but those are easily from something else. Like I think I might be constipated and the back pains might just be from sleeping the wrong way. So I REALLY REALLY need some other peoples opinions on this. PLEASE PLEASE, tell me how common these pregnancy scares are and if you think I might be having one. Please don't say to use protection next time because I already feel guilty enough and have made my choice to not have sex again until I am married. PLEASE PLEASE PLEASE... Give me your thoughts.