Before you head out for your weekend, check out some of this week's best posts from the Cool Running and Active communities:

•     Has anyone raced pregnant?

”I am doing my third sprint tri in July and I will be about 10 weeks pregnant. I have already received the OK from my doctor. I am looking for info from anyone who has raced pregnant - any advice, how did the race go, would you do it again?”

•     Situation

“Lately my shins have been hurting during the first couple of miles of my runs. I don't stop, it ****** me off that they hurt, so I just run through the pain and they eventually stop hurting after 2-3 miles, they're not sored afterwards or anything. Why do you guys think this is?”

•     Why Run?

"I know many on this forum have answered this before. Most of us in many different ways. I just find that if I can go out and enjoy a run under someone else's reasons then I am motivated for at least that run for that person. "

•     Open Water Swim and Jellyfish

”I swim off the coast of Wrightsville Beach, NC and every time I do so I encounter what people refer to around here as sea lice. After some research, I've learned it's actually jellyfish larvae.”

•     ironman entry

"Does anone have any tips on enterig an ironman sanctioned event? It seems pretty confusing--almost like you have to be at one to enter the next year's event.”

•     Nervous about my first 5k

“I have my first ever 5k in 2 weeks. I am VERY new to running. Friends had volunteered me for a relay leg in a marathon. I trained for about a month and finished my 5.2 mile leg in 53 minutes. That was yesterday and now I'm hooked.”