Hi Shannon and welcome
I am Laura 42 and DH will be 42 in 2 months. I also cannot answer too many of your questions, but thought I would share where we are with TTC. We are TTC my #3 (I have 2 from my previous marriage) and trying for DH's #1.
Having a 3rd child was not something that I had put much thought to after my divorce. But when I remarried and DH and I spoke about him not having any children we spoke about us TTC for 1 together. In Sept this year we made our final decision to TTC.
We both work full time jobs but that had no effect on our decision to TTC, I would continue to work after baby is born. We both have concerns about Downs so we have both been taking a Folic Acid Forte that will hopefully help reduce the risk. I had DD when I was 37 and she is perfect (a brat

but perfect).
Love is an amazing thing especially when it comes to children. When I had DS I questioned if I could love another child equally, and I do, and I appreciate my son more (that's a tough one to explain).
Please keep in touch and I wish you strength in your decision. GL!