Hey it is absolutely normal to have white and creamy discharge during your ovulation period and this means between periods.
How old are you?
Since you are using condoms during sex you are taking care of yourself. But if you are using them only when you are having sex during your period than you are not safe. Even if you are in a relationship with only one partner not protecting yourself can cause serious consequences to your health. You are aware of the fact that you can get pregnant as well.
And why do you have sex during your period? Because you want this or your boyfriend? Is the feeling better or what? I would like to know the answer to this questions so I would appreciate if you answer. Thank you in advance and I would like to say just one more time to take care of you and your body.