okay me and my partner have 2 boys that we love and adore ,we are trying foe number 3 its taking a little longer then b4 i fell 2 months b4 its been 4 now . my period has only been normal once i had the implant in my arm ,my last 2 periods have been light one lasted 3 days just enough to use a panty liner the second was 2 days early i had 2 home test very very faint line but i dont feel pregnant only that im cranky and have been nilly vomiting the last few days id only be 6 weeks if i was ? so im not sure whats happening to me i have had the implant in my arm b4 and my period went straight back to normal could i have something wrong with me or is it normal ?