advice

yesterday i was at my family easter and both of my family members had new borns one of them and myself and got pregnet at the same time but i lost my baby i could not help but feel resentment against her as i held the baby all i kept thinking was why lord why could she have one but i cant then i see my other family member not doing any thing for her cbild as if she dont care all i want is to be a mother and i see all these ladies popping out babies and they dont even care to have them am i wrong for the way i feel cause i am so angry and emotional about the whole situation but i feel horrible about feeling the way i did to my family member because she had a baby i feel like a horrible person