Church. Should I trust?

k

Hello everyone. I have 2 kids 7y and 3y. I just left abuse marriage. And I have no family and friends to watch my kids so I can work. Well I have a full time job. But my ex husband trying to leave kids on me or disappear suddenly so I skip my work days. He is saying he will watch kids 3 days and I watch kids 3 days. On the 4 day half and half l. I can’t afford baby sitter. I was looking all around to find affordable one bud can’t. So I was calling churches to get some help. I found a church there is a family who willingly will watch them one day a week or whenever I need. We just met today. I told them I will drop them off to thier house but she said we know u r busy mom we will pick them up from ur work place. And when we were in the parking lot they even didnt show me thier car. I’m little concerned to trust them or no. What do u think should I do?