tmi post but i need advice

Alexis
Id like to start by saying i just recently started the nexpalon impant i had it put in on the 8th doc did all the normal test everything came back good or normal. I started the 11 of this month right on time but it was super light lasted 3 days which was a lil odd mine usallt last 4 days and are really heavy for the first day and a half And then becomes mid ranged bleeding and then really light. I started again on the 20th i chocked it up to the nexpalon messing with my cycle and show mo aogns of stopping. Well all day my belly has been cramping amd just feeling kimda odd if that makes sense also i have been slightly nuaseated( that normally happens during my cycle) and them i went to the restroom and pulled my tampon out ( just a regualr one ) and this came out again tmi iapolgize ahead of time. Idk what it is and i am calling the doctor first thing in the morning they did teat before i had it put im i am not pregnate just wanted to get yalls opinion and see id anyone else had this happen thank you in advance for any help