Am i pregnant with the implant in?

Patient: I have had the implant in for a year next month,yesterday i had spotting which was light brown.i woke up this morning with heavier bleeding and proper blood,i also have a achy pain in my belly and lower back. i got told this morning by someone that i could be pregnant and that my body might be rejecting it because of the implant,and a couple other people have said they had the same,some have lost the baby,others have had the baby. could i be pregnant and if i am pregnant am i losing the baby?