It is very difficult to consider what reasonably makes you feel the way you do and what is indeed unjustified jealousy. It is what you really need help with so that you can approach your partner and discuss how to move things forward so that you can both feel fulfilled in your relationship and family.
What is reasonable/unreasonable is not black and white. There is an element of commonality amongst families, but the rest is really dependent on your dynamics.
What is reasonable is to accept that there is now a change in the dynamics of your family/relationship and that going back to how it was (which was ideal for you) is not possible. That means that you WILL have to accept that you will be getting less attention and time from your OH, but it shouldn't mean that you shouldn't gradually start to function at times as a trio.
You need to trust that time will help you settle. You will gradually feel less in demand of your OH time and attention as you become more secure in your relationship. You will also build a better relationship with your SD even maybe to the point when she and you will want to spend time together without your OH!
Be careful on how you express your feelings with your OH as he could easily turn defensive as he feels stuck between his partner and daughter, wanting to please both of you and therefore feeling guilty if one expresses unhappiness with him, guilt that will turn into frustration, clearly mainly towards you as you can't so easily blame a young child for wanting attention. When you get to this point, it's much harder to step back because it becomes a battle of expecting the other to change their ways rather than what you can do yourself to make things better.
Do talk to your OH about your feelings, but do in a way that he doesn't feel that he is made to feel responsible for them and something that he needs to sort out. Look at it as if the issue had nothing to do with the child. If you missed your OH (because of work, activities, friends etc...), how would you suggest to make it better. Is it about making more time for each other, or making the time of better quality. Make suggestions as to what you think you could move better towards this new life and most importantly, be patient as time always help to adjust.
I remember when I first moved with my OH how much I craved to spent all my time with him and missed him when I didn't. It really hurt. 7 years later, I rarely miss him and it's not so much about time together but the quality, making sure we do have special time when we remind ourselves how much we mean to each other, but I don't love him any less than I did then.