What is going to happen

I have a 3 month old and her mother just recently moved out due to a argument between us never had a dna test done but beleve she's mine she hasn't let me see her in about 2 1/2 weeks so far and already filed for child support even though I offered her help she denied it so I texted her saying if she ever needed anything for her to let me know she is now saying I never helped but only tryed once I didn't wanna text her everyday because I would either be igored or get rude attitude she saying I can't have my daughter over night in till she's 4 years old do I have any chance to win this or am I out of luck she has 2 other daughters from previous relationship I have one son I get on 1 3 5 weekends I have no way to beING able to hire a decent lawyer and I don't wanna get the rear end of the deal here