Well, apparently I can do it. I jogged for three mins straight, twice, on Wed (4/15).
The Week 3 instruction is this:
Brisk five-minute warmup walk, then do two repetitions of the following: Jog 200 yards (or 90 seconds); Walk 200 yards (or 90 seconds); Jog 400 yards (or 3 minutes); Walk 400 yards (or three minutes)
I didn't decide until I was actually out there and on my first walking interval. After the 90 secs of jogging, instead of walking for 2 mins, I decided at about the 1 min mark to only walk for 90 secs and then give the 3 min jog my very best effort.
MY LUNGS WERE ON FIRE by the time I got to 3 mins. Youch.
At the end of both 3 min jogs I actually said outloud "Holy crap! I did it!" haha The second 3 min walk ended about two houses away from finishing the 5th loop so I ended up going 5 loops / 1.5 miles.
By the end my lower back was really aching but everything else was ok.
Yesterday (and a little bit so far today) I started getting an occasional stabbing pain in my "bad" knee but I'm unsure if it's related. It didn't happen while I was running at all. I've had so much pain in that knee in the past 16 years though, and there's nothing that can be done about it; so, I don't think I'll worry about it unless it starts happening during my runs.
I'm still kind of discouraged - I just want to lay around all day and eat :) or do I?... I have always hated mindless exercise. But, I have noticed that I have not been getting restless anymore and that's a big plus.
It takes my mind off the fact that I want to have a baby so badly and I can't. So that's good, too.