What's going On?

I'm 43,well actually 44, today is my birthday. However, I have not had my period all month. It usually comes between the 15-25. My husband and I have been trying to conceive, for three years. I've take 4 home test within the last 2weeks. All were negative, or showed faint lines on 2 after 10 minutes. I went to a women's clinic, requesting a pg test. The lady informed me that I needed to wait longer before they could test me. Any his,I'm going back on the 2nd of July. I think I'm pregnant but,my husband doesn't. Plus we've been having marital problems, sad to say,and I've requested a divorce.... Signed ,sad,and confused😢