To not get up when my DSD wakes up?

No need for two adults to wake up.
She is 6, old enough to entertain herself for an hour at 6am.

tell your dh to not use his daughter to guilt trip / manipulate you into getting up with him… and just as he can open the bedroom door, you can just as quickly close it!
this is also the perfect opportunity to him spend quality 1:1 time with daughter…

He is showing you how things will be when it's your own child, only worse, as it will be every day which will likely cause not only you to feel like you are doing all the work but you will likely grow to resent and dislike him. I wouldn't be having a child with him until this has been discussed and expectations set. I would start with asking why it requires both of you to be up, tired and neither being able to lie in? Red flag btw. Would be interesting to hear his response to that question - it will likely tell you all you need to know.

Why would he get up? Surely, a 6 year old can make themselves breakfast and put on the TV?

'I think DHs expectation is that we are a family and we should do everything together. He says DSD wants me to be with her when she wakes up.'

No. He wants a lie in while you get up with her.

Why is DSD with you every weekend? That means the mother gets to have a lie-in every weekend and a child free weekend every week. The weekends should be alternate, the child-free weekends should be shared - that mother has wangled herself a very nice arrangement, put a stop to it now.

There's no way I'd even consider having a baby with this man. He's completely selfish. This is his child and he wants you to take care of her. He's jealous of the fact you have time to yourself. That tells you everything.

You'll end up doing 100% of the parenting if you have a baby for both DC.

Think carefully whether you want this.

When did he leave his ex? When she expected him to help with the baby/toddler?

Hell I never even got up at 6am with my own dc!!
The joys once they could use the TV remote or make cereal.

Wait for the dsd wants to meet your friend today....

Yes, I agree with the other posters on here, he’s being very selfish.
But why is DSD with you every weekend if as you say, she loves her mummy very much?

Ha ha 😂

I don't even get up every morning with my own kids!

You don't.

Basically he finds it boring and wants someone else to help/do it instead.

He knows you want a baby. He knows framing it as family time makes you feel special and knows aaying DSD wants you makes you feel obliged. Like how dare you let down his child because you wouldn't let down your own.

Nope.

Really? It doesn't take two people to look after one child who gets up early, as long as OP was up and about by 7.30 /8am what's the big deal?
A lay in until midday on a regular basis would obviously be selfish.

I don't even get up every morning with my own children 😅

The OP tells us everything here.

It's her step daughter.
DH got up and then starts the BS tactics of "I'm tired....."

"DSD wants to spend time with you..."

Coming upstairs and leaving the door open....

It's VERY CLEAR that he expects her to be up regardless.

I can guarantee 100% that had OP got up at 6am to see to DSD, the DH would still have been in bed and wouldn't have got up as well.

OP not being default parent won't stop her having a decent relationship with the child. Not will not getting up with her one day a week.

He had a child and he has to suck it up and get up with her every morning she's with him.

OP, if you know any adults who've grown up in blended families ask them. I guarantee many will say that however nice step parents (mums) were, they craved time with their actual parent.

Having said that, I did know a girl once whose step mum was considerably more use to her than her useless bio parents (and stayed in friend's life after her dad split with SM).

I don’t expect my husband to get up with my children - he is a great stepdad but my kids my lack of weekend lie in. He also likes his sleep and he works hard

I think if you never got up until midday it would feel as if you were avoiding her, but nope I totally agree that it’s his daughter and he should get up. The fact you get up sometimes is good enough. If/when you have shared kids you would need to share it.

This! Your DH sounds ridiculous. This isn't even your child and even if it was, why can't you have a lay in? This is just the start, if you go on to have children with him.

Also, there is no need for a 6 year old to get up at 6am.

She can look at her books, play quietly then get some breakfast at 7 (leave things out for her).

If this is his attitude now why the heck are you planning to have a child with this man? I doubt he will be rushing to get up then.

Has your DSD come in to you now the door is open? Nope. So she can’t want you that badly. What DH wants is for YOU to get up so he can say that he didn’t because you was already up and he was tired because he didn’t sleep well.

He’s already showing that his expectation will be that you will be the one up and that will only worsen if you have a child with him.

This is a sign.

To be honest I think I'd ditch him. Wouldn't fancy raising some other woman's child anyway.