Yes, you can start an online business from home. If you’re selling items that have stock, you might want to think about how you will keep your stock. For instance do you have sufficient space to keep your products in good condition and make them easy to pick and pack when an order comes in? You might also want to consider the security of your place, and insurance.
For online stores where you have bulky items to sell, you might want to consider a secure storage lockup, drop shipper or warehouse service, where your items can be kept away from your home and accessed when they are required for dispatch.
Starting an online business can be very exciting and if you are going to be successful you will need sound planning of your business, your niche, your marketing and your selling strategy, and a professional online store website to give your buyers a trusted and lasting impression of your business.