think OP just needs some reassurance, not “yes of course it will probably be more difficult now that you’re 35”
I don’t think there’s any value in treating OP like an idiot saying it’ll be fine and reassuring her. She obviously is aware fertility decreases with age. It’d be crueler to have a host of women saying ‘oh you’ll be fine, look how many of us had babies in our forties!’ giving her false hope (of course she COULD be fine and probably will be but nobody knows that). Going by threads like these as they’re on a forum for parents you’d be forgiven for thinking it’s a piece of cake having a baby in your forties, when the evidence suggests differently. Over 40 you have only a 5% chance of conceiving each month, and a 30% chance of being infertile. Under 35 your risk of having a miscarriage is around 15% but 35-45 that rises to 20-35% (and 50% at 45 and above!).
At 25 your chances of having a baby with Downs Syndrome is 1/1200, but at 35 it’s 1/350 and at 40 1/100. As we age the chances of a successful healthy pregnancy diminish, it’s just biology.
Of course it’s not all doom and gloom and OP has a good chance if she gets started ASAP, but giving pointless ‘it’ll be fine!’ replies when nobody has a crystal ball is just silly. Better to be straight, let the facts speak for themselves, and for OP to get cracking ASAP than just think oh look how many women have had babies way older than me, I can afford to wait or be casual about this.
I speak from some limited experience, I’m only 31 but knew from 22 I had endometriosis and started wanting kids at 27, my ex didn’t so we broke up and I dated and met a man who did want them and we started TTC when I turned 31, prior to TTC I went for surgery to see how my endo was doing and found it had spread so extensively it irreparably blocked one of my tubes. I woke up from the surgery being informed I’m subfertile and have a lower chance of getting pregnant than a healthy person, and to give it a shot ASAP and come back in six months if it didn’t work. We, by some miracle, did get pregnant and so far it’s going well. But had I waited longer there’s a high chance my other tube would have ended up blocked too and I’d have been unable to have children naturally without assistance.
It pays to have a bit of knowledge around fertility and age imo and at 35 OP needs to be feeling some urgency if having a baby is really important to her (not so much of a problem if she’s ambivalent).