TTC #2 recently taken implant out

Long story short when I first came of the pill in 2016 I got pregnant straight away unfortunately that ended in a miscarriage, we then waited for one period and tried conceiving again and fell pregnant with our daughter who is now almost one.

baby born Dec 31st - In June I had the implant put in after not being able to go back on the pill and had it removed Nov 1st ( I bled the entire time it was in basically) then three weeks later I got

My period. Since then we have tried conceiving and my period is a day late and my test was negative ... I have felt extremely tired and off but not pregnant ~ what could be wrong as to why my period hasn’t returned on time? Could

My body still be adjusting to the implant being removed ?