Please help

KIMBERLY
My boyfriend and I have been together for almost 4 years our first year together he asked me to marry him and then he took a back. Three years later I keep asking him when are we getting married and when are we having children I have a condition that limits the number of years I can have a baby what do I do because every time I ask him all he says is someday soon someday I don't want to wait anymore does anybody have any advice to get my boyfriend to stop dragging his feet