My fiancé dumped me at his mother's home

I met the father of my child in 2014 after completing university, everything seemed perfect. He even asked me to move in, and in due process I got pregnant.

He requested me to take him to see my parents which I did. Six months after giving birth to our daughter, he asked me to go and live with his mother in Mukono district claiming he was not doing well financially.

My fiancé promised to pick us after four months but it is now a year since I started staying at his mother's place.

He rarely visits us and I was told by a concerned neighbour that of late he's living a luxurious life and he is cheating on me.

My mother- in-law also seem over whelmed with us.

Should I leave and go back to my parents or stay bear with my mother- in-law as I wait for my fiancé?