I only have 1 daughter and got her at age 34,5.
When I was at her school - bringing and getting her - the other mothers were always assuming I was around 25 - just because Viv was a 4 years old. That is a nice circumstance.
Being an older mother - in your 40ties, is'nt wrong at all. You are mature and very capable to raise childs.
The only negative is that the children involved sometimes are aware of the fact that their Mum is "old" and afraid that they loose her when they (the kids) are still young.
I remember my youngest sis was afraid that she would lost her parents soon for their age.
My mother was 43 when she gave birth to my sister, my father 50. (her fear did'nt really came out - my mother became 87 and my father 85 before they passed away
edited to say that I hope Jackson will be better soon and wishing you a lot of energy to endure this all.