Yes, on a veset day a woman is required to perform a bedikah. You may attempt to time the bedikah for when you seem to be staining a bit less.
After the fact, if a woman neglected to perform a bedikah on her veset, she has to perform a ‘make up’ bedikah only for the onah beinonit.
Please note that there are different approaches to calculating vesatot while using a hormonal contraceptive. For more information, please see our article on the topic.
Please write back with any further questions.