Qadha and Kaffara

Q: What is the ruling on performing Kaffarah for intentionally missed/invalidated fasts during ramadhan? Is it permissible to choose the option of feeding 60 poor people and doing qadha (making up for those fasts)?

Q: My age is 45 now. I became baaligh at the age of thirteen. Without any reason I was not fasting in Ramadhaan, until my age of 22. But after that my life changed and I began to lead a pious life. As I'm a lady I miss rozas due to periods every ramadhan. Also I left full rozas in 2 Ramadhans due to pregnancy. I'm doing qaza of my rozas since the age of 22. But it has become a huge burden upon me as I have to make qaza of hundreds of rozas and also with the mudd that should be given to poor on each roza. Mudd also doubles each year as I could not make qaza of these hundreds of rozas in one year. I am a follower of the shafiee madhhab so I request pious solution for this big problem.

Q: What's the ruling on missing days in Ramadaan due to sickness? Or any reason? Some one was telling me you just have to make it up? Others say you could only make it. You can not feed poor people?

Q: Can we fast any day or there are any restriction that we can't do qaza on Friday or Saturday?

Q: If a person broke fasts at least once over several Ramdhaans during their youth, do they have to give kaffara just once for all the Ramdhaans or do they have to give kaffara seperatly for each year?

Q: I want to know that 5 years ago I was pregnant for my daughter in the month of Ramadaan, so after she was born I wanted to pay in the missed fasts as I have done for my eldest, but a moulana told me it wasn't neccessary I just have to pay fidya. Now people are telling me that I have to pay in the missed fasts. What am I suppose to do now?

Q: As a teenager I had a bad habit of masturbation, which I sincerely and deeply regret. The urge was very strong and I resorted to this sin even in the month of Ramadaan while in the state of Roza. I would keep the fast as usual, i.e have sehri, and abstain from food and drink until the time of iftaar, but on one occasion would commit this heinous sin. May Allah Ta'aala forgive me. Ameen. I need to know that what should I do? 

Q: Is their a kaffara if you break a qaza of a nafli saum?

Q: I read on Islamiqa that a kaffara is only due on a broken fast, if the fast was broken due to sexual intercourse, there is no need for kaffara. If the fast was broken due to delebretly eating or drinking, only qadha is necessary. Is this right?

Q: I am 30 years old this year and its been only 3 years or so that I have started fasting, but I have not still kept those that I missed for menstruations. I would like to know what should I do? I am very guilty and feel very bad about it. I have made tauba not to miss fasts again. But what can I do about my past? Same about salaah?