I need some advice girls....

There's a half marathon on next weekend and I'm thinking about doing it. I've done a couple of 10km events but not for a couple of months now. A half marathon is 21km, so it would be double the longest I have run before. I've stayed active since my last 10km run & have done a couple of 6/7/8km runs since then, but I wouldn't say I'm in tip-top running form at the moment.

I'm also in the TWW to complicate matters.

I think I could do this, it would just be a matter of finding a good pace & keeping the legs moving. But should I do it?

What do you think?