A Very Fertile Family Tree

My grandmothers on my father and mother's side were extremely fertile. My grandmother on my father's side had 6 children (5 boys and 1 girl) and my grandmother on my mother's side also had 6 children(4 girls and 2 boys).
Between 2 women they had 12 kids and that's pretty impressive! Well, it's impressive to me, because I'm trying to have just 1 and to have 6 just seems so incredible. Another impressive fact is that my grandmother had my mother when she was 43 years old. Back then, a woman giving birth at 43 was relatively rare, plus they had to deal with poverty, war, etc. Certainly not an easy time, but making babies seemed to be quite easy. My parent's generation also had a bunch of kids, expanding the family tree. From my generation, those who are married, all have kids, except for me. I've got a big family of uncles, aunts, cousins, a brother and even a grandmother who is over 90 years old and although we all live quite far from one another, they are very much in my thoughts and heart. Reflecting on all of this, I realized that I've got a very fertile family tree and I hope that I can expand my little branch one day.

At the end of the month, I'll be turning 37. Usually I love birthdays, but this year I've got some mixed feelings about it. 37 is not old by any means, but I've read so many articles about the significant decline in getting pregnant after 35. I'm over 35 plus I have endometriosis, so where does that leave me? One thing is for sure, I will not get pregnant at 36, so is 37 my lucky number? Will I beat the odds? I really don't know, but I'll keep trying, I'll keep hoping and I am happy to be a part of the family tree as a wife, daughter, sister, granddaughter, cousin and aunt. Wow, I've got a lot of titles on my family tree, but I just want one more to make it complete.