Is 45 too old to have a baby??

I have 5 children..21, 14, 6, 5 and 3. My husband (51) and I (43) spent the last 11 months NTNP...and nothing happened ....I assume due to age. I was on another site, that I have deleted my account with, where a woman said to me, "Aren't you in your 40s? Don't you already have like 5 kids or something? You are quite selfish for posting here when some women don't even have a first or second baby. You're too old." I was devastated by her comment. I had already made up my mind to give up, but to have a no-faced stranger, hiding behind their computer say something so blatantly rude was superbly difficult. I say, you're mind is up for it, and you feel like a baby is supposed to be in your life...then YOU DO IT!!!!!! God Speed!!!!!!!

It has been very tough dealing with 6 much older kids (all in their 20s and late teens) and dealing with the little one's baby, toddler, small child needs. It definitely is difficult to "start over" again, and I REALLY felt my lack of freedom with having another baby. I have had to reprioritize my mind, over and over again, and change my life, lifestyle, schedule. I've had to remain very open minded and flexible, and if something isn't working I need to change things and fast! All of these characteristics I have found to be easier now that I am older (I am 50 now and my little one is 5). I truly think this experience has made me a better person, a better mother, a better daughter, and it has certainly made me feel like I can accomplish anything with some hard work and patience.
I won't lie, it has been a difficult, tiring, frustrating journey, but at the same time it's been so happy, rewarding, fulfilling. I feel younger and stronger than I'm sure most 50 year old women, I am in the process of menopause now, and not having an easy journey with that, but I'm sure because I am distracted by a 5 year old, I'm certainly not dwelling on those hardships.
Take one day at a time, keep your mind and heart open, be healthy and forge ahead!!! Life is what you make it, everything worth having is worth working hard at. I hope this helps!!

I had my 4th baby at the age of 45, my husband was 46. We both came into the relationship with 3 each, their ages at the time of the new one's arrival was 20, 18, 17, 17, 15 and 13. Our addition to the family is now 5, and the household is still very hectic, messy, loud, happy and lots of times angry.
I delivered her naturally after 5 hours of labour (I had to be induced) with my husband and 20 year old daughter present, she weighed 7lbs 3oz (my smallest baby, but still a perfectly healthy size). In the delivery room I had 2 obstetricians, 2 obstetrical nurses, a pediatrician and a pediatric nurse, we weren't anticipating any health issues but I think this was a standard practice at this hospital. We both received a clean bill of health within 10 minutes of delivery, including a high five from the pediatric team!
She is now 5 and the most energetic, happy, imaginative little person! She is truly our joy, her siblings all adore her and she them. I absolutely cannot imagine my life without her, she is my little best friend, i have no regrets. I would encourage any older woman who wants to have a baby whether it's her first or her 4th to just get started! Worry, fear, exhaustion, frustration is all the same, these emotions have no age restrictions and are not reserved only for the older mom. There will always be obstacles to overcome and hurdles to cross when making and bringing a little life into the world.
We had some heart breaks and fears on the way; we experienced the crushing grief of 2 miscarriages before becoming pregnant with her. I would not have an amnio due to my fear of the possible but slight chances of it inducing a miscarriage, so the duration of the pregnancy my blood ran cold regarding her health. Ultra sounds showed that she had stopped growing at 7 months gestation, only to deliver her at a text book weight on her due date. I was given very little choice regarding an epidural ,with the brief explanation of my increased risk of having a heart attack at my age, although in perfect physical health. She was born with her umbilical cord loosely around her neck. But all the worries and fears and apprehension were laid to rest when she safely emerged.
Our little girl has been and I'm sure will continue to be the light of our lives, we feel privileged and blessed to have her!
So to answer your question? Don't put it off, don't overthink, if a baby is what you want then get making a baby!