Pregnant On The Nexplanon?

I Need Some Help. My Baby Boy Was Born October 16 2017. After I Had Put In The Nexplanon In November. Since Last Month I Have Been One Week On And One Week Off My Period. Its Been Strong And Alot of Mucus. I Went To A Midwife Appointment Today They Took A Urine Smaple And She Told Me That They Took A pregnancy test And The Test “DIDN’T COME BACK NEGATIVE “ But It Wasn’t Fully Positive??!?!?!?!? She Took Blood Work For pregnancy test And Told Me She Will Can Me Tomorrow to confirm. Now Since Its Me Im Crazy About know if I Am Or Not. I Bought 2 Cheap Test And 2 First Response. I Got 2 Faint (really faint) Positive on the cheap and a negative On the first response. Im So Nervous About Being Pregnant with a 8 months baby. He Has Also Been Sooooooooo Whinny these days. Everytime I walk away from where he is sitting Now He Starts SCREAMINGGG Could I Be Pregnant?

Will A Miscarrige Or Extopic pregnancy Happen?

Any Advice? Im Soo Scared Help??