She broke the Ramadan fast because of a relationship between her and a young man; what must she do?
Question

                A few years ago, I broke the fast on five days during Ramadan with no excuse, and that happened during the day after starting the fast. That was because of a physical relationship between me and a young man at that time. I have repented from what happened, and I want to correct my mistake.

Do I have to make up those five days only, or do I have to make up three hundred days, two consecutive months for each day? Or do I have to feed three hundred persons, sixty persons for each day? The reason for my confusion is that I know that whoever breaks the fast with no excuse after having started to fast is obliged to fast for two consecutive months or feed sixty poor persons, and the one who breaks the fast with no excuse before starting the fast only has to make up the days when he did not fast with no excuse; is this correct? I would also like to know how a girl can fast for two consecutive months, knowing that during this time she will be on her monthly period.
Praise be to Allah.
      We ask Allah to accept your repentance. 

    Firstly: 
if 
    what you mean by that physical relationship that occurred between you and 
    that young man was that it involved intercourse, then this is more serious 
    in terms of sin, because intercourse is one of the gravest of things that 
    break the fast, so how about if that intercourse was haraam? This is even 
    more haraam,  and what is required in that case is to repent and offer the 
    strictest kind of expiation, which is to free a slave; if that is not 
    possible, then one must fast for two consecutive months; if one is not able 
    to do that, then one must feed sixty poor persons. 
If 
    intercourse took place during the day in Ramadan on two or more days, then 
    the expiation is to be repeated the same number of times as the number of 
    days on which intercourse took place, according to the view of most of the 
    scholars (may Allah have mercy on them). This is the view of Maalik, ash-Shaafa‘i 
    and Ahmad. See: al-Mughni (3/33-34). See also the answer to question 
    no. 22960 

    Based on that, if a person had intercourse on two days in Ramadan – for 
    example – then he must make up the two days on which intercourse took place. 
    He must also, in addition to making up those days, offer expiation. So he 
    should fast for two consecutive months for each day, but he does not have to 
    fast for 120 consecutive days. If he fasts for two consecutive months for 
    the first day, then does not fast for several days, then after that fasts 
    for two consecutive months for the second day, his fast will be valid. 

    But if that physical relationship that occurred between you involved things 
    less than intercourse, but there was emission of maniy because of it, then 
    the fast was rendered invalid, and in that case it is required only to make 
    up the fast, in addition to repenting; no expiation is required. For more 
    information, please see the answer to question no. 
    
    106476

    Secondly: 
If 
    a woman is required to fast for two consecutive months, then the sequence of 
    fasts is not interrupted by menses; so she should not fast during the days 
    of her menses, then complete the two-month fast after the end of the menses. 
    This has been explained in the answer to question no. 
    82394

    And Allah knows best.