Very high/soft cervix even while on birth control pills. should i be worried?

No: Every woman is different. Sounds like you check your cervix often----not a bad thing to do, but not really needed. Sounds like its making you worry, so i'd suggest no need to do it.

No worries: I believe your describe a normal variant for cervix position and tissue consistency. Your gynecologist or pcp who performs the pap smear can give a better impression. Best wishes.