I have been taking a very smart, safe and mature route to running since having Abby. Instead of just running for running sake and not caring if I am hurting my knee until it starts hurting and I can't take one more step, I am trying to look at my running as something I want to do when I am 80 and not just today.
One big change is I take walk breaks. I am not going to be an elite runner, as cool as that seems, and thus it is okay if I walk.
This past November I started slowly increasing my running time by increasing my running intervals from 1 minute to 10. Now that I can go ten minutes before I take a walk break, I am working on increasing my overall running time from 30 minutes to, well, more than 30 minutes. I am basically doing this routine where for three weeks I increase my long run by several minutes and then week 4 I go easy. All the while taking 1 minute walk breaks every 8-12 minutes.
Today I ran 48 minutes w/ walk breaks every 10 or 8 minutes. Next week I will be back down to 30 for my easy week. But, after that I will try for a 56-58 minute long run. My goal is eventually 90 minutes so I can seriously think about doing a half-marathon. Which will require at least 2 hours. I have ran 2 in the past but I did not take them seriously and ended up w/ really sore knee from an aggravated illiotibial band. My chiropractor has helped a great deal along with some spiffy orthotics that fit like a glove in my Asics 2110's, which I just bought for 46 bucks free shipping...they retail for 90 bucks. Oh yeah.