Are headaches fatigue nausea at night and mood swings signs of pregnancy even if you have just had a period it was irregular?

It is possible that headaches, fatigue, nausea at night, and mood swings could be signs of pregnancy, even if you have recently had an irregular period. However, it is important to note that these symptoms can also be caused by a variety of other factors, such as stress, hormonal imbalances, or certain medical conditions. If you are concerned about the possibility of pregnancy, it is best to take a pregnancy test or consult with a healthcare provider for further evaluation.