Can Losertin Cause Armpit Odour?

I am 27yrs old, about 5'3" with a clean medical history. I've been taking Loestrin 24 for the past six months, and I notice I am starting to have armpit odor. This was never an issue before. Can this be a possible side effect. The deodorant I normally use is Secret invisible sold pH balanced. Do you have any suggestions of what I can do to stop the odor?