NexPlanon implant

Rachel
Hello ladies, 
I had the NexPlanon inserted a week ago tomorrow and have been reading SO much negative/positive about it. For the women who have had NO side affects or periods, how much do you weigh and how tall are you? I'm wondering if it depends on size(???) I was supposed to start my menstrual cycle yesterday but haven't had any bleeding yet. Fingers crossed in hopes of not having a period at all!