I am engaged to be married to a wonderful man - he's my soulmate 
My stbDH has an 11 year old daughter who spends every other week living with us - she spends the other week with her mum, who is a nightmare (and a totally different story), but I don't have anything to do with that. Me and my stbDSD get on really well - we go shopping together, watch movies, have a laugh and I love her dearly 
My stbDH is a brilliant Dad; and his DD is the centre of his world, which is one of the reasons I love him so much. Thing is, one or two of my DF don't think he is good for me and they are starting to get me down.
stbDH has a flexible working arrangement so that he can pick his DD up from school and they can do things like go cycling, swimming etc together. DD used to go to her mums every day after school, and get picked up later, but stbDH changed it a few months ago. On the days his DD is with us, he leaves for work really early, and I make sure that she is ready for school and drive her there to drop her off before I go to work - I cleared it with my boss as I sometimes arrive at work a few minutes late, but he was fine about it.
The other weeks, when DD isn't with us, stbDH stays at work for longer to make up the hours.
One of my DF said that I'm being taken for granted because since this arrangement started, I cook most nights when I get home from work, and I do most of the cleaning and laundry as well - stbDH doesn't like doing housework when DD is around because it's boring for her. When she's not here, stbDH working, so I do the shopping & cleaning in the evenings. DF said that she doesn't think that it is right that I hardly get any time on my own with stbDH without DD; but I don't mind, she's lovely to have around.
My DF's also think he's taking the piss by expecting me to do the morning school run so that he can get out of work early and have fun with DD those weeks. Thing is, it's not as if stbDH has told me I have to do these things - we talked about it, and it seemed like the best solution to the problem so I agreed.
I know I should ignore them, but they were right about a things in my first marriage that became a problem later, and a little bit of me is wondering if they are right this time, too