Welcome to the Wefugees community and thank you for your question.
We had a question about a similar case here on Wefugees in the past. Please check out the information provided in this thread:
In a nutshell, you have to stay in your current federal state for the first 3 years. If you want to move earlier, you either have to have a job in another federal state, start an apprenticeship or studying. The other way would be to wait for your certificate of marriage from Syria because spouses have a right to live together.