Frustrated and depressed ?

Kari Jade Asked: Frustrated and depressed ?

i'm 28 Now that I'm getting closer to 30, it seems like family members or friends ask me when am I going to get pregnant. Even though my family and friends are well-intentioned, I can't help but feel that these constant questions are getting to me.

we've wanted to start a family and have the pitter patter feet running around in our home,but sadly after 9 whole yrs, three IVF cycles and 5 miscarriages..still no little angel in our life And i am to the brink of depression thinking about this. We've Seen countless Dr's and they've checked for everything and there is nothing wrong with me or my husband..and yet nothing.

My husband and i are guardians of his 12 yr old half sister. her parents passed in 2007 she's a special needs child ( she has epilepsy , mild retardation and ADHD.) I just don't feel a bond with her because her parents hated me. before she came here i had no family closeness with this child at all.

i get really frustrated with dealing with her and Everyone says how happy I should be, or how blessed I am, but I don't feel blessed. I feel sad and stressed beyond comprehension. we don't have children of our own yet and everyone expects me to act husbands half sister is my child. i don't feel the bond that a parent would have with their child i feel no attachment to her it feels awkward. my husband gets upset with me because i don't think of her as my child. i feel like everyone else has beautiful babies no one understands. the constant questions and barrage of comments and questions from people are like a continuous pouring of salt on an open wound.

I'm embarrassed. Every time I think I'm beginning to accept my life, I get depressed and upset. I can't sleep,I can't eat, I go through the motions of life, and I feel like i'm in a fog I just feel hopeless.
i feel like a looser everyone my age that i know are having fruitful and abundant life's doing things like
Graduating from University, Starting Families , Traveling , Having Great Careers while i'm stuck being stagnant raising the special needs child of in laws who hated my guts.

when we first got my sister in law my husband and I talked about her situation briefly but things went so quickly after his parents funerals i wasn't like i was really given a choice because he wanted his sister here regardless of how i felt.

My mother calls me every week telling me that I should get pregnant NOW etc. etc. It's driving me nuts. i was talking to a friend yesterday about how i'm feeling and she tried to downplay my feelings by saying " you should be thankful for what you have , why get depressed about not getting pregnant? you don't should be lucky you don't have to go through morning sickness , or swollen ankles or headaches !" but that's easy for her to say because she just had a new baby. i felt like i wanted to break down and cry i feel left out of life because everyone i know that's my age has kids and i don't It is very hard and some days are worse than others.
What do I say to people? Am I being overly sensitive?