Prolonged BC

I was going to start a cycle before my vacation but with how insurance worked out I want to post pone it. I just finished 3 weeks of BC and they want me to remain on BC until I am back from my vacation.

Started BC Feb 6 and I would stay on until Mar 28.

I have DOR and I am concerned with oversupression and poor response being on BC so long.

Has anyone been in the same situation and if so how was you outcome?