<human>: I started to exercise regularly two months ago. I began with biking in the morning while watching the news and drinking coffee. That amped up to following the couch to 5k program, and now I am running 3-4 days a week for app. 30 mins/day, walking 10-15 on those days, doing yoga 3 days a week and resting completely one day a week. I have upped my speed, my endurance and I have changed my diet to be pretty regular - carby side (I run mid morning), greek yogurt with granola, coffee and fruit for breakfast, salad with chicken for lunch, fruit or popcorn for snack in the afternoon and usually a pretty protein rich dinner with standard veg and carbs. I can see a difference in my body - my legs are smaller than I remember then being in a long time, my upper body is slimming...but my god if I haven't GAINED five lbs. since starting and where I used to have a standard pear shape body all around, I now have the same curve up my legs/hip until the top of the hip/bottom of the stomach which goes back out. I have...a spare tire! This is new for me, and considering that I can SEE change I just don't get what I am doing wrong or if my body is just weird.

Can you succinctly summarize the text in 1-3 sentences?
<bot>: exercise alternating running/yoga 6 days a week, healthy balanced diet, body is smaller except for spare tire and on the scale I've only GAINED 5 lbs. WTF?!