Growing, Growing, Growing...AH!

Okay, so at Rosie's 2 month appt, she was 98% for length. She is now 2 weeks away from 3 months, but she has been in 3-6 month sleepers since she was 1 1/2 months, and now she's growing out of those! Okay, so it makes a big difference on the brand, but still. The Circo brand run small, and she's at the outer limits of them. when she stretches out, they are soooo tight!And last night, Bobby was holding her and she was wearing a sleeper I got her from Steve and Barry's, and I just started cracking up. Two of her toes had found a weak spot in the stitching, and were sticking out! All of her onsies are getting too tight too, although most of her length is in her legs. One piece outfits (rompers and such) are generally a no-no. But I'm really not ready to put her in a 6-9 month sleeper! And she's thin, so she looks like she's swimming in anything that's actually long enough for her. What am I gonna do with this kid??