If you cannot help yourself and you blurt it out when you're trying to not say anything you can could over play it to give the implication that this pregnancy was not an accident (I'm not saying that it was or it was not, I have a 14 month son and we informally planned to get preggers so it's irritating when people assume that it is an accident. Either way that's not my business). Then continue on about how you love kids, etc. and that everyone is someone's son or daughter (or both?), and that being a mother gives you decision making skills that cannot be found in a textbook, etc. Whether or not you're for or against abortion, pro choice, birth control, etc. should stay out of the conversation. There's been quite a bit of plan b/morning after issues with pharmacists over stepping their practice and refusing to dispense, which at least in NY is illegal (assuming appropriate age and what not). So maybe at least be prepared to answer something like that. The last thing you want to do is say anything that might make look like an error-prone person. Regardless of what you choose, don't let anyone tell you it's not possible. Being a mother will be tough whether you're in school or not. The baby will be your source of stress, and your motivation factor. School will be your place to "escape" for a change. Obviously not true for everyone, but yeah sorry for rambling.