Hi Natalea,
Its funny cause I was in a very similar situation, My dh was in a long term relationship and had a child with this person so of course they were a big part of dh's family and when they were no longer around his mother resented him big time for that,

when I came on to the scene she was ok to me as dh's relationship had ended aprox 1-2 yrs earlier but she deffinately wanted them back together as she had photos of them together all through her house and allways chatted about his ex it was not very nice,

I think the best thing I did was rely on my family for the support I needed and forgot about them as far as being happy for us went cause that was not going to happen and now that I am a little older I see that that was the best thing to do, because if I had have fought with her then I would have been the bad one too but I didn't so she is the one who has wronged me and they can't say anything about me not being nice to them, and that feels good.

It has taken almost 5 years for her to finaly start to accept me and start trying to be a part of our family and for her to start accepting my children, she was allways nice to them and cuddled them but the thing that hurt the most was how differently she treated our kids in comparrison to dh's child from his previouse relationship that was the hardest thing to deal with and thankgod thats come to an end.

I think that in the end if you just let them be, they will realise what they are missing out on and in the mean time as you said your mum has enough nanna love for your child and that's exactly how I felt and it is true, and if they do not ever come around then that is sad but you do not want those negative influences in your life.

Enjoy your pregnancy it was obviously meant to be as was mine and try not to let it get you down ( its hard I know ) in a perfect world everyone would be happy for us but unfortunately that is just not so, so we have to be happy for ourselves.

My dh and I want a third child and I have struggled to be happy about our decission because of his mum but I have decided that its not her life its ours and she has no right to an opinion in regards to this so stuff her its what we want and I am happy about our choice to have 3 children.

I think its great that you are finaly getting what you have wanted and I am happy for you and your dp.