How to relactate?

My 6 week old was nused for almost 2 weeks and then put on a bottle. However, I was still pumping so it was a combo of both formula and my milk. I thought it might be best to go back to nursing because it has become more challenging to find formula and my supply has been running low. He’s been on the left side for maybe 2 minutes and the right he refuses. I’m going to continue to try to nurse but it has helped to get my supply flowing again.Has anyone stopped and then started nursing again? Has it been successful? I figure it will be a bit challenging at first and I will need to keep trying every chance I get. I just want to know if it’s a possibility to start back up after a hiatus