Help With Everlasting Sweet Pea Seedlings

Hello everyone, I'm new to this site and new to gardening. I've planted some everlasting sweet pea seeds and the seedlings are a month old. They're about 8" tall and have 3 sets of leaves each. I'm wondering if anyone can tell me whether that sounds about right? I'm just concerned because I've had to give them some supports to keep them upright. I've pinched them off and I've started the process of hardening them off so that I can plant them outside in their final location. Any advice would be greatly appreciated!