I’m pregnant n idk how to tell my husband

This last march I found out I was 5weeks n 4 days pregnant with our first child together, however he has a full grown child that is almost 25 from a previous marriage. Please don’t judge cause I’m 27 n my husband is 45 n I’ve been wantin to tell him that we were pregnant but I’ve kept it from him cause recently he told me he doesn’t want anymore children at all. He told me this at a restaurant when we went out to eat one night. This shattered me n makes me wonder why he really married me knowing that I wanted to have kids with him. I tried to start a convo with him about havin kids n he straight up looked at me n said “you’re not havin kids with me” n yesterday was our 6th anniversary of marriage. At this point I’m almost 7mnths pregnant n I love my husband dearly, so please be kind n really like some advice.