I don't think those are gonna fair very well.
Like
>>3175 said they're way too stretched and from what you said, the issue is your light source. Growing by a window just doesn't cut it, especially for the seedling stage where it needs the most amount of light it can get so it can grow in those early stages.
The way they look now, if more leaves start to grow, because of how it's stretching nearly horizontally already, the weight of the new leaves will be too heavy for it and it'll eventually fall over and die under it's own weight. However I wouldn't give up just yet. You'd be surprised how tough these plants can be.