Ive had this same problem as you know chody! If you're results driven, perhaps also take some measurements as you could be losing fat but gaining muscle? Also it depends what you eat and when. Have you been having more carbs since youve started exercising? Or eating more during the day without realizing?
Usually it takes a couple weeks to see proper results on the scales but cm's do show alot quicker.
I TOTALLY understand your frustration hun! Im inbthe exact same boat!