Hello, I would be happy to help you with your question.
Ali, if you otherwise have regular periods, and had a last period on 3/10, then you are definitely late for your next cycle. If, in addition, you have had unprotected intercourse
over the last month, then you definitely might be pregnant. You need to check an over-the-counter pregnancy
test. You can buy one n your own (or better yet, make your boyfriend buy it for you!!). Check it as soon as you can. If you are pregnant, call an OB/GYN and make an appointment to be seen.
I hope that this helps. If you have more questions, please click on "ASK ME A QUESTION" link above to directly ask me a question!