I chose bridesmaids because i was an excited bride, but now i don't want any. What to do?

That does sound a bit strange about your friends deserting you when you got engaged. If you don't want bridesmaids, then just tell them. It's your wedding and you should be happy with it. If you want to find out what's going on with them and why they aren't being supportive, you may have to confront them and ask them what's going on with them. If they say "nothing is wrong", then tell them that you don't feel like you are being supported because they seemed to have all disappeared and you'd appreciate their presence during this happy time of your life and after the wedding as well.