Should I tell my husband I’m pregnant if I’m pregnant

My husband says he knows me so well he can tell when I’m coming on my period or if it’s already on. He’s recently said that even if I got pregnant he would know before I knew. Well it’s been 35 days since my first day of my period. I’m very open to him about how I feel and stuff. Lately I have been very sensitive to foods and smells. I got agitated when he made too much noise, also I told him that I have minor nausea and minor cramps. He keeps saying you’re not pregnant you’re not pregnant, I didn’t cum and I would know if you were. I told him look I’m just updating you on weird shit that is going on with my body. He says look I know you want a baby but I really doubt you are. I said fine...if I wind up pregnant, “I’m not telling you. You’re gonna have to ask me since you doubt I am” (ofcourse I would tell him if he really didn’t catch on) but what do you think, if I get my BFP, should I tell him immediately or wait until he becomes suspicious (even if it’s for weeks or days)