Can my ex kick my kids & I out?

My ex fiance (broke up with me today) & I have lived together for 3 years. He owns the house & I give him $1,000 a month for the mortgage. I have 3 children & am due with number 4 any day. He told me tonight he wants us out. He said he will file for eviction if I don t go. I don t have anywhere else to go, I give him all I get each month. My girls just started school & I don t want to move them. I have been paying every month & I get mail there & I also have a notarized paper he filled out stating my girls & I live there. Can he kick us out? If he files for eviction how long is the court going to give me to get my stuff out?

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