Whether or not pregnancy can be detected when your period is delayed for two days depends on your menstrual cycle. For women with a 28-day menstrual cycle whose period has been delayed, a urine test or a blood HCG test can be used to determine if they are pregnant, and I personally recommend that a blood HCG test be used to determine if they are pregnant, as it will be more accurate. For those who have irregular periods, even if the period is delayed for 2 days or even more, it may not be clear that they are pregnant. It is recommended that you trace back the medical history and look at the time of the last sexual intercourse. If the last time you had sex was more than 15 days ago, this is when a blood test to determine if you are pregnant is also possible. At the same time test progesterone to help determine whether there is recent ovulation, if there is ovulation, but also be careful, because sometimes the sperm can survive more than 7 days, if there is ovulation within 7 days after intercourse, precisely there is still viable sperm, sperm and egg combination to the coitus for half a month has not yet reached the period of implantation, so by any means may not be able to detect a pregnancy, so this time even if you do not detect a pregnancy, but also to be careful.