Will it get bigger

Hi, sieht ziemlich klein aus, denke das er zu wenig Licht bekommt, und wieboft gibst du Wasser? Zu viel Wasser am Anfang verursacht das die wurzel nicht richtig atmen kann und dann wächst die Pflanze auch sehr schlecht. Wenn sie in den nächsten Tagen nicht besser wird würde ich eine neue einpflanzen. Kannst ihr aber noch ne Chance geben und ein paar Tage abwarten.

For being at the start of Week 3, the seedling does look like it’s hanging in there, but it’s still quite small for this stage. A healthy seedling by this point typically has a few sets of true leaves and a sturdier stem. Yours is showing green color and some development, which is a good sign, but the thin, stretched stem suggests it's still not getting enough light or might be recovering from a slow start. Make sure your grow light is close enough and strong enough, and consider gently adding more soil around the base of the stem to support it. With good lighting, proper watering, and a warm, humid environment, it should catch up in the next week. Keep an eye on its daily progress, healthy growth should start accelerating soon.

It will grow. Looks wet

Looks like it got too little light early on, then you over-compensated and gave it too much. All the nodes are stacked on top of each other. The growth will get stunted if it hasn't already.