Hello.. I'm 15 and female, I have two questions that kinds of go together. But to start it , I'm wondering if there would be a chance I could be pregnant, I've was with my boyfriend for about two year, we currently split up but are still close. We had intercourse a few months ago, I've had my cycle two times since, but missed it last month and it still hasn't came. Its somewhat irregular, but its usually the end of the month (27th ish ) or will roll into the very beginning of the month after (around the 2nd) or around the 15th. This has happened once before , but the past two days I've felt nauseous , only once a day though, and usually if I lay down it goes away, but that leads to the second part, I also suffer from insomnia, the past 3 going on 4 days I've gotten about 8 hours or less of sleep, and I was told that sleep deprivation can cause nausea, but with no period as well its starting to make me wonder.. I haven't really stressed about it, but it would be greatly appreciated for a second opinion, I don't think I am, but thank you for your time.