Menstrual cycle is three days late can I be pregnant?

Can you? Add up your possibilities. Use protection? Had intercourse about 10-14 days ago ? Not on birth control? If you answer yes to any of the above, you certainly have the potential to be pregnant. If the answer to all of the above is no, then you are likely not to be pregnant.
Yes but... Have you had sex in the last month? If so, even with birth control (which can fail) you can get pregnant. Keep it simple - do a pregnancy test and find out! good luck!