It does not hurt to go ahead and start if you want to. I think it really depends on what you sell, to be honest, but considering that people are probably already looking since shipping time might be a factor (especially international), it might be nice to get your shop out there.
Remember, cut off times for international shipments is coming up fast, so you are more likely to get holiday-related sales now vs. in December. Again, this depends on what you sell and what your shipping situation is.
Btw: your products are adorable. :)