Any nurses or doctors or medical professionals??

I got a positive LH ovulation test result of 2 dark lines. That is a positive ovulation test.. I did get a random period after not getting one for a year and the test was 2 weeks after. Does that mean I ovulated even on Nexplanon..? And does this mean my boyfriend could've gotten me pregnant..? I thought you were not supposed to ovulate on Nexplanon..