She had a slight bleed and a brownish discharge, then it turned out that she was pregnant. Should she make up missed prayers?
Question

                I got my period and there was brownish discharge and slight bleeding, and I did not pray on the basis that it was a period, and it lasted for ten days. When I went to find out what caused it to last for so long, it turned out that I was one and a half months pregnant. 

The question is: should I make up all the missed prayers or what?.
Praise be to Allah.
      The fuqaha’ differed as to whether a pregnant woman can 
      menstruate or not. There are two opinions, the soundest of which is that 
      she can menstruate, although this is rare among women. This is the view of 
      the Maalikis and Shaafa‘is, and of Ahmad according to one report; it was 
      also regarded as more correct by a number of scholars. But the scholars 
      stipulated that in order for the blood that comes from a pregnant woman to 
      be regarded as menstruation (hayd) it should be like menstrual blood and 
      come at the time of menses. Please see the answer to question no.
      23400. 

    Based on that, it seems that what happened in your case was 
    not hayd (menses). 

    With regard to making up the prayers, you do not have to make 
    them up, because you only refrained from praying because you thought that it 
    was a period (menses). 

    Shaykh al-Islam Ibn Taymiyah (may Allah have mercy on him) 
    said: This also includes the woman who experiences istihaadah (non-menstrual 
    bleeding) if it continued for a while and she did not pray because she 
    thought that prayer was not required of her [at that time]. There are two 
    opinions as to whether she has to make it up, one of which is that she does 
    not have to do so -- as was narrated from Maalik and others -- because when 
    a women suffering from istihaadah said to the Prophet (blessings and peace 
    of Allah be upon him), “I have been bleeding heavily for some time and it 
    prevents me from praying and fasting” he instructed her as to what was 
    required of her in the future, and he did not instruct her to make up past 
    prayers.

    End quote from Majmoo‘ al-Fataawa, 21/101. 

    And Allah knows best.