Breastfeeding positive opk and cervical mucus


Breastfeeding - have a 3 month old. With my first did not get period until 8 months postpartum. Had ewcm so took a ovulation test and was positive ... kept taking tests and have had 4 positive opk now ? Anyone else have experience with this ? Cervical mucous lasted 3-4 days ? Ovulation or false positives due to breastfeeding ?