Going on my first group ride tonight....I'm super nervous. It's supposedly a social training ride "designed for cyclists of all abilities", but my husband called tonight and they said they average 15 mph, whereas I'm usually more in the 13 mph range. At least my husband will stick with me, but getting dropped will still be embarrassing/frustrating. Worse yet, I'm afraid I'll cause a crash or do something just plain stupid. About 50 riders are expected to show up, so I assume there will be some other women, but I'm still terrified.

Any tips? Plain old reassurance would also be welcomed!