The guy I'm talking to doesn't know I'm pregnant..

I'm just about 3 months pregnant. I got pregnant the first & last time my then boyfriend had sex, we are no longer together, we broke up before I found out I was pregnant. A guy from my past that I fell hard for when we were about 16yo got in contact with me & weve been talking quite a bit ever since. He keeps asking me to hang out & I make up reasons why I can't/busy. I haven't came out & told anyone but close family that I am pregnant & im so scared to tell him due to the fact that he might not ever talk to me again...any advice? Positive advice & opinions only please!