Normal?

I weigh 192 and I am 5ft 2in. I finshed my period on 5-13. I got the nexoplon (implant) in 5-15. I am able to feel it under my arm, but I have not had any spotting even though it has been 4 days since it was put in. spotting I know is a common thing, I did notice my cervix dropped low and cm is creamy. so, since i'm not having spotting should i be worried?

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