Going crazy...

So my husband wants to wait for our first baby. But I don't. I was on pills then changed to the nexplanon implant on Dec 16. I have always had regular periods so I had last period on Dec 11 had implant put in on the 16. Started having a lot of programs with my arm on top of having constant pregnancy symptoms starting the beginning of Jan. Period hasn't showed up and Dr had to remove implant on the Jan 19 still having symptoms of being pregnant . neg test but was over 3 mths before showed with first daughter. So my question is has any one gotten pregnant on nexplanon?