Ovulation question postpartum-

Hi! I am 6 months postpartum and exclusively breastfeeding and my period has not returned. My husband and I want to start trying for a baby in the next few months. I am trying to figure out if I am ovulating without a period. If so, I don’t plan to change any breastfeeding routines. However, if I’m not ovulating I want to consider cutting back and/or eliminating so my period returns so we have a better chance of getting pregnant again. I don’t have experience with ovulation strips so can anyone help me interpret if they show ovulation? Or any feedback about this matter. Thank you in advance for your time and consideration!