I can tell you that during the seven months of pregnancy, moderate yoga practice can help you maintain health and psychological balance. However, because every pregnant woman's physical condition and health condition are different, you should consult your obstetrician or professional yoga instructor before starting any new exercise.

In general, the following are some yoga moves suitable for 7 months of pregnancy:

1. Sitting twist: Sit comfortably, cross your legs, and then gently twist your body. This helps to relieve back discomfort and improve blood circulation.

2. Cat-cow style: kneel on the ground, align your hands with your shoulders, and align your knees with your hips. Then, slowly bend your back into a concave shape (cat style), and then arch your back upward (cow style). This action can relieve back pain and improve posture.

3. butterfly stroke: sit on the ground with your feet together and your feet as close to your body as possible. This action can open the pelvic area, relieve pelvic pain and improve blood circulation.

4. Tree: When standing, put one foot on the thigh of the other leg to keep balance. This action can strengthen leg muscles and balance.

5. Dove pose: Sit on the ground with one leg straight back and the other leg bent in front of your body. This action can relieve hip discomfort and improve the circulatory system. When doing any yoga exercise, make sure your breathing is steady and avoid overexertion or overstretching. If you feel any discomfort or pain, stop practicing immediately and consult your doctor. In addition, you must cooperate with a professional yoga instructor for pregnant women to ensure that your movements are correct and safe.