As an auto, you need to be careful when transplanting. Any shock will stunt their growth. Be as careful as possible. Normally I’d go from germination to final pot. As far as outside, make sure your temps are high enough/ both at night and during the day. I’d say not lower the 60 degrees (16 c ). Again it’s about not stunting her growth. If wind is an issue, feel free to stake her. I find doing it sooner rather then later, as there’s less chance of damaging the root system.
Happy growing 🌱