Implantation bleeding

Hey guys! Im so confused! Im on the desogestrol pill so i dont have any breaks in my pill and if i miss one i bleed the next day! But this time i missed 3 in one week never bled and then 2 days ago i had pains in my stomach like i was guna come on but mothin! Then the day after i got some black blood appear! Gross!! Iv had mild pains in my belly and ovary area all day and a headache all day could this be implantation bleedin? Has anyone ever experienced this?