Contraceptive implant bleeding

G❤️
I've had the implant for two days now and they said to keep the bandge on for 2 and 5 days for the plaster .. I took the bandge off today and I can see blood ( only tiny bit ) threw my plaster so I peeled the plaster offcarefully ( only the corner of plaster) ( not touching the butterfly stitches) to see that there dark dark blood I'm concerned ?? Should I be or am I just worrying over nothing .. Just worried about infection by the way I'm 16 years old and my parents don't know I've had it done xx eventually I will tell them but not now & they know I'm sexually active ...