Could too much estrogen&progesterone in BCP cause pregnancy symptoms: veiny breasts/hips, bloating/distended stomach, more visible montgomery glands?

Certainly. Every woman is different, and not every OCP is appropriate for every woman. There are may OCPs out there with differences in the types and dosages of estrogen/progesterone. It is absolutely appropriate to try a different strength and or progestin and see if these symptoms resolve.