As you await the results of a home pregnancy test or confirm your pregnancy with a doctor's visit, it's essential to be aware of early symptoms. Hormonal changes can cause various physical and sensory experiences during the first trimester. These may include dizziness, headaches, nausea, and a heightened sense of smell. Some people might experience bleeding or spotting, but this is different from a regular menstrual cycle.

Source: https://www.cnet.com/health/parenting/early-pregnancy-symptoms-how-to-tell-before-a-missed-period/#ftag=CAD590a51e