Late Menstruation And No Signs Of Pregnancy?
Knowing your fertile period can be done by calculating your menstrual date. Generally, the fertile period occurs 12-16 before the next menstrual day. Or you can include the date from the first day of your last menstrual period (LMP) and the length of your menstrual cycle (usually every 28 days). So, since the data you provide is only the last day of your menstruation, I try to assume that the first day of your last menstruation is April 1, with a cycle of 28 days. So it is estimated that your fertile period will occur on April 10-17. However, if your cycle is shorter than 28 days then your fertile period may occur earlier. You can see more details in the following article: calculating the fertile period
Sometimes it is difficult to distinguish between early signs of pregnancy and symptoms before menstruation, so to be sure you can do a pregnancy test using a test pack. This tool has a high sensitivity when used 7 days after intercourse, especially if using the first urine sample in the morning. If after repeated tests the results are still negative, then you may experience delayed menstruation due to hormonal imbalance which can be triggered by stress, fatigue, use of contraceptives or medical conditions such as cysts, endometriosis and so on. The postinor medication that you take contains artificial hormones which have a big chance of causing hormonal imbalance in your body, but the cause of your late menstruation can still be caused by other factors, yes.
If after getting enough rest, consuming nutritious food, exercising regularly, but within 2 months you still haven't had a period, immediately consult a gynecologist.
I hope this information is helpful.