Okay, this isn't exactly wedding-centered, but I don't know where else to talk about this. I haven't posted much here, but I "lurk" at least once a day for the past couple months. My fiance and I had our first real fight today about our easter plans, and I don't quite know what to do.
A little background: My fiance and I have been together a year, engaged for five months (quick, I know!). Things have been perfect, we have both been in very serious relationships before and knew pretty much exactly what we did and didnt want in a relationship. I have a huge family that I am very close to, where my fiance grew up in foster care and has almost no contact with his mother. He has only had a relationship with his dad for the past two years because he was in prison since he was four. He sees his sisters occasionally, maybe once a month or so. As for my family, we see them everyday, and my fiance usually loves this. About a month after we got engaged and moved in together, both of us lost our jobs. Though our parents make the same amount of money, my parents have stepped in without question and helped us pay everything from rent to cell phone bills to groceries. They are also paying for the entire wedding, which they have set an incredibly generous budget.
Okay, so here is the dilemma. Thanksgiving, we split the day between families. Christmas, we decided to spend an entire day with each family so spent all of christmas eve with his, then christmas day with mine. About two weeks ago, we hadnt heard from his parents so we called to see what the plan was. We were going to spend 11-3 with his family, then 3-7 with mine. About a week ago, his dad called to say his sister couldnt make it this year so he would just come and take us out to dinner. I said this would be silly, and invited his parents to come to our gathering (we have about fifty relatives who come). They declined, saying they would rather take us out and then spend "alone time" together for the rest of the evening. We are already spending all of tomorrow with his sisters, doing an easter egg hunt and having dinner. If I go along with the "new" plan with his parents, I will miss dinner with my entire family I only see three times a year and the easter egg hunt with my nieces and nephews I am very close to. I just dont think this is fair. My fiance is saying I am putting my family over his, and we never see his parents so we should cater to their schedule. His parents only live twenty minutes away, its his choice that he never goes to see them. My parents do everything for us, I dont think its fair to neglect them at Easter, especially when my family invited his and they declined.
When I try to argue my point, my fiance says that he feels so strongly about this because he never had holidays with his dad growing up because he was in prison. I feel bad, but its just unfair. My family feels offended that they declined the invitation, and I can't go now without upsetting my family. This is our first real fight, I'm even spending the night at my parents. 
What do I do? Just give in and go with his family to make him happy, but upset mine on Easter? How can I explain it to him without seeming selfish for wanting to be with my family? I know this isnt normally what is discussed here on the boards, but I dont have really any close girlfriends to talk to.. and I know this is what struggles you face when putting together a family, and there is always lots of girls here with good advice. Any would be greatly appreciated. 

Finished BC and not preventing since June 2010.
Actively trying for baby #1 since July 2011.
SA completed 5/29/2012. No sperm found.
11/12: Dx: Congenital Bilateral Absense of the Vas Deferens.
Genetic Testing needed as this is a mutation of Cystic Fibrosis.
IVF #1 with ICSI planned for 2013.
PAIF/SAIF welcome!