I haven’t been on in forever. I have two children, a 16 and 6-year-old by IVF. I’m 43 myself and thought I was going…

I haven’t been on in forever. I have two children, a 16 and 6-year-old by IVF. I’m 43 myself and thought I was going through menopause. My last period was March 28. This crazy thing happened today, a BFP but after crying and freaking out, I’m now kind of excited, except now I’m freaking out that my line isn’t dark enough for being approximately 6 weeks and a few days. I’d like everyone’s thoughts.