She wants to live with her husband without having a wedding party
Question

                I would like to live in halal with my partner and live with him before we celebrate the wedding, as hes financially still not ready.

We both live in the same country, but different countries than both of our parents. We did the gotba, but were a long way from celebrating the big and expensive weddding my mother demands.

I assume it is allowed for us to live together after the halal/nikah? 
However are we allowed to live together if my mom wants this only to be after the wedding?

Is she able to refuse me, if I am officially married (in front of God)?

We are both alone in this country and we would like to be together - we want our relationship to be halal in front of God and to be together until it is our time to have that big wedding (which we both dont even want).

I hope this could be answered as soon as possible as we will do the halal/nikah soon and we both gave up our rent.
Praise be to Allah.
    Giving a wedding party and inviting people to express joy and 
    announce the marriage, is something that is extra and recommended with 
    regard to marriage, but it is not one of the conditions or essentials. 

    The Prophet (blessings and peace of Allah be upon him) said: 
    “Proclaim the marriage.” Narrated by Ahmad (15697); classed as hasan by al-Albaani. 

    Al-Munaawi said: What is meant by proclaiming it is 
    broadcasting news of it among the people. 

    End quote from Fayd al-Qadeer, 2/14 

    Ibn Qudaamah said: It is mustahabb to announce the marriage 
    and bang the daff (hand drum) for it… so that it will become well known and 
    recognized.

    End quote from al-Mughni, 9/467 

    Holding a wedding party is one of the most common ways of 
    announcing the marriage. 

    There is no doubt that your mother’s request to have a 
    wedding party is the desire of every mother who loves to express joy and 
    celebrate her daughter’s wedding, as well as taking into account people’s 
    traditions and culture. 

    So at least have a small party, even if it is limited to the 
    family, at reasonable cost and avoiding extravagance and wasting money. This 
    will please your mother and will also achieve the purpose of announcing and 
    proclaiming the marriage. 

    If you cannot do that, there is nothing wrong with you going 
    to live with your husband even if you do not have a wedding party, because 
    the marriage contract is complete and valid so long as it is done with the 
    consent of both spouses and the woman’s guardian, and in the presence of 
    witnesses. 

    See also the answer to question no.
    2127 

    And Allah knows best.