She had an abortion and she did Hajj even though she was still bleeding
Question

                After I got divorced I had a haraam relationship with another man, which led to zina. I ended this relationship and repented to Allah, then after that I got the opportunity to go for Hajj with my parents who did not know about my sin. But one week before I travelled for Hajj, I found out that I was pregnant and I gave myself an abortion two days before leaving England to perform Hajj. I sincerely regret everything that happened, and I bled for ten days after that but I did not pray during this period which was the length of Hajj. 

I entered ihram but I did not perform ‘umrah, and I remained in ihraam because I did not know when the bleeding would stop. I also did tawaaf al-ifaadah, at which time I was bleeding a little. 

Then we left Makkah and went to Madeenah one week later. Do you think that my Hajj is not valid? 

Do I have to make up the prayers that I missed?.
Praise be to Allah.Firstly: 
We ask Allah to forgive you 
    and accept your repentance, because zina is a serious matter and a major 
    sin, and having an abortion after that is another sin. We ask Allah to keep 
    us safe and sound.  
But whoever repents, Allah 
    accepts his repentance. 
We advise you to turn to 
    Allah, may He be exalted, and to do a lot of acts of obedience and worship, 
    in the hope that Allah will expiate your previous actions. 
Secondly: 
If the abortion took place 
    before eighty-one days of pregnancy had passed, then the bleeding that 
    resulted is not regarded as nifaas; rather it is irregular bleeding that 
    does not prevent one from praying and doing tawaaf. You should have prayed 
    during these days, and your Hajj in that case is valid; and you have to make 
    up the prayers that you missed. 
If the abortion took place 
    after eighty-one days of pregnancy had passed, and there were signs that the 
    foetus had begin to take shape, then the blood was nifaas, in which case 
    prayer and tawaaf are not valid. 
But for the person who 
    lives in a faraway land and cannot wait in Makkah until she becomes pure, 
    she may do tawaa, according to the more correct opinion. However, for the 
    one who lives close (to Makkah) or for whom it is not difficult to come 
    back, or who can wait until she becomes pure, then she should not do tawaaf 
    if she is still bleeding; rather she should wait, or she should travel and 
    come back, and her Hajj is valid, except that she remains in ihraam and does 
    not complete the second stage of exiting ihraam until she comes back and 
    does tawaaf. 
The second stage of exiting 
    ihram (al-tahallul al-akbar) is the stage after which it becomes 
    permissible to have intercourse and to do the marriage contract; a marriage 
    contract done before that stage is not valid. 
For more information please 
    see the answer to questions no. 
    37784, 143089,
    14217 and
    47289. 
And Allah knows best.