Dreaming of a pregnant woman being chased by a horse indicates that you may have been feeling lonely and helpless recently.
Dreaming of an old person being chased by a horse suggests that you should be moderate and restrained in your actions recently. If you act impulsively, everything will go smoothly; otherwise, without moderation, you may end up in failure.
Overall, your current state and interpersonal relationships are very good, and you are well-suited to collaborate with friends on bold endeavors, which are likely to be successful.
THE END