There is really not enough profile and medical information to respond thoroughly. First, let me say I am sorry for your losses. I had 2 miscarriages and it is very hard emotionally. I did go on to have healthy children, so I hope that that will bring you some hope. What does your doctor say about the miscarriages? There are all kinds of reasons. Mine was from a lack of enough progesterone. I had to take supposatories with the next pregnancy. The cyst is small and probably functional and would not cause the miscarriages. I don't know about the bumps. You should write a list down of all your questions so when you go to see the doctor, you will have them with you. Good luck!
I am sorry you have had another miscarriage. Has your Dr said anything about what might be causing that to happen? Did he suggest that you stop trying for awhile? You are very young and you have a lot of baby making time ahead of you. Don't you think it would be in the baby's best interest if you got yourself together first? How is your diet? Do you eat well or do you eat a lot of fast food? Do you get enough exericise? If you are like my 20 + kids you most likely don't get anywhere near the fruit and vegetable intake that you should have. You probably don't get enough omega 3 fatty acids either. Are you underweight or overweight? Now would be a good time to get yourself mentally and physically healthier and perhaps that would help your issue. I read your other posts and I can hear how afraid and stressed you are. I know nothing about you, but I do know that a mom needs to be more at peace than you are right now and a healthy vessel to carry your baby in is the most important first thing you can do as a mother.
As for the other stuff. It is extremely unlikely that your cyst had anything to do with your miscarriage. That is a really tiny cyst and under no circumstances would a Dr be worried about that at all. In your age bracket they won't remove them unless they reach 8cm's. A cyst like that is just some old tissue and gunk that didn't "flush" out the way it was supposed to and it got stuck. It will go away and be disposed of by your next period if not sooner.
Those bumps don't have anything to do with ovarian cancer as far as I know and I have had stage 3c for over two years. Has your Dr felt them during an exam? If so what did he say? If not you need to say something to him. During prenatal care they routinely run STD tests for the baby's sake,but there are things like HPV that don't show up on the standard test. If your Dr didn't order it, he should have. Make sure you have had that test. That can have a lot to do with problem pregnancies. It is very common and since you are only 22 if you haven't had the new vaccine for it you should do that ASAP. Yes, even if you are with a guy, and you are madly in love and you will be with him for the rest of your natural life, and he would never ever cheat on you etc., do it anyway.
Take care and just try to relax about all of this. Oh, if you are going to be on forums it is a good idea to put some stuff on your profile page so people don't have to read back through your old posts to find out about you. We can look in one place and it will help us to answer your questions better.
Good luck