Stupid Bathroom Scales

   All this time I feel that I was lying to myself about my weight, weighing myself on that old bathroom scale and thinking I was losing weight. Yesterday  I weighed myself at 145-147, wasn't sure because every time I step off of it, the arrow goes back to 3 lbs AND right after I move it to zero before stepping onto it. I decided to buy a digital scale with body fat measurement as well, so I weighed myself on it, at 152 lbs with 34% body fat.......... 6 lbs difference or so? I told myself it must be because I had eaten lunch and breakfast (I normally weigh myself first thing in the morning after using the restroom and pumping). I waited until this morning and weighed myself again, still 152 lbs but this time 35% body fat........ what the heck!!! I don't know what to do, on myfitnesspal.com I've been going with the older scale and now I feel that if I go from 145 lbs to 152 lbs that would make me a liar, AND I will have taken so many steps backwards. I look in the mirror and can see that I've slimmed down some. I've lost 2 1/2 inches around my waist, I've gone down 3 belt loops/holes since buying the belt 2 1/2 months ago or so and I've lost 1 inch around my thighs so I don't get it. Did I weigh more than the old scale said when I was pregnant? Instead of 164 lbs did I really weigh 174 lbs or something? People were telling me how small I was for 9-10 months pregnant,  but I don't know now. Did I really weigh 134 lbs last year when I got pregnant, I sure as heck didn't look like I weighed 145 lbs or something........ I am so confused. Parts of me just want to keep trekking along and training for my Half, hoping that as the mileage increases and then levels out to 15-20 mpw after the Half, my weight will slowly decrease as well. I tell myself that my body still needs more months to recover, I am only 4 months post and I think I am doing pretty good but I just can't get over the stupid scales!!! UGH!!!