21 weeks pregnant and ex wants to take me for lunch tomorrow?

So we split up about 6 weeks ago and I've moved into my own place. He has helped me move and he is even paying part of my rent to help me out. We have both admitted we still have feelings for each other and we talk everyday almost all day. He wants to go for lunch tomorrow... Would you consider this a good sign. I don't want to be doing something with him just because he is bored. I'd be going because I want to be there... Any advice please... Many thanks