Hi, thanks for using healthcare magic
tests are usually accurate. They can detect pregnancy by day 11 to 14 after conception.
If the tests were done and were all negative then it is not likely that you are currently pregnant.
If you wish to confirm this , you can consider a blood HCG
level at your doctor's office.
If this is also negative then you may want to consider visiting your doctor to determine if there are any other causes for your symptoms.Fatigue
can have different causes.
i hope this helps