Is it only pregnant people whose palms throb?
Generally, abnormal sensations in the palm, such as a pulsating or twitching feeling, are not exclusive to pregnant individuals. If you experience such discomfort, it is recommended to seek medical advice promptly. Below is a detailed analysis:

If the pulsating sensation in the palm occurs only occasionally and is accompanied by recent hand overuse, frequent electronic device usage, mental stress, or anxiety, and there are no signs typically associated with pregnancy—such as delayed menstruation, nausea, or fatigue—then the sensation is likely unrelated to pregnancy. It is usually caused by localized muscle or nerve tension or temporary changes in blood circulation, and symptoms often improve with rest.
If the pulsating sensation occurs frequently and is accompanied by signs of pregnancy such as delayed menstruation, breast tenderness, or changes in appetite, pregnancy cannot be ruled out. Hormonal changes during pregnancy may affect blood circulation and nerve sensitivity. Therefore, further confirmation through a pregnancy test is necessary; one should not rely solely on palm sensations to determine pregnancy.
In daily life, it's important to allow your hands adequate rest. Avoid prolonged or repetitive hand use or extended electronic device operation. Take breaks to stretch your wrists and fingers during work. Soaking hands in warm water can help improve circulation and relieve muscle tension. Maintain a regular sleep schedule, avoid excessive fatigue and mental stress, and follow a balanced diet rich in essential nutrients, including appropriate intake of vitamins and minerals, to support normal nervous system function.