Could you still be pregnant if had your menstrual cycle but a test was negative are feeling nauseous when lie on stomach at night or after take run?

It is still possible to be pregnant even if you have had your menstrual cycle and a negative pregnancy test. This is because implantation bleeding, which can occur when the fertilized egg attaches to the uterine wall, can sometimes be mistaken for a period. Additionally, some women may experience nausea and other early pregnancy symptoms even before their period is due.

Here are some reasons why you might still be pregnant, even if you've had your period:

* Implantation bleeding: This is a common early pregnancy symptom that can occur 6-12 days after conception. It is caused by the fertilized egg attaching to the uterine wall. Implantation bleeding is typically lighter than a period and may last for only a few days.

* Early pregnancy symptoms: Some women experience nausea, vomiting, and other early pregnancy symptoms even before their period is due. These symptoms can be caused by the rising levels of pregnancy hormones in the body.

* False negative pregnancy test: A pregnancy test can give a false negative result if it is taken too early in pregnancy or if the test is not sensitive enough to detect low levels of pregnancy hormones.

If you are concerned that you might be pregnant, even if you have had your period and a negative pregnancy test, it is important to see a doctor for a blood test to confirm or rule out pregnancy.