Still trying

He's 32 I'm 42. I've had two pregnancies. Want another. I'm 3 days late no positives. Cycle is a average 26 days. Not sure of last ovulation, but I'm 3 days+ late. He wants another. I'm feeling old and out. I had lab drawn today. I always had early positives in the past, but all negatives now. I'm feeling so confused and out today. He says it doesn't matter wants to get married in 3 weeks . :-(