Might be pregnant and I feel like I'm lying to him

Sabrina
So I am not 5 days late & there was an absence of my usual PMS symptoms this month. I have been having bad back pain as well. I started having pregnant dreams. I haven't told my bf because we don't want babies right now. And he probably would say it's all in my head. Two months ago I cried wolf and because of that, when I told him I was late he was assuring me it will come. I didn't tell him this time feel different. He has a 2 year old that he came in with & that I adore but we discussed getting married before we thought about another baby. Every day I go feeling like this & not taking a test I feel like I'm lying to his face but I do want his support. I'm scared honestly.