@Lime19
Sorry to hear you've been having a difficult time 
This was me almost 1 year ago although I'd gone for medical management.
Yes yes to all you wrote about having a toddler & miscarriage.
The age gap thing- this pains me so much but I try not to think about it too much, there is nothing I can do about it- apart from get pregnant again!
I should have a 6 month old right now, my LO is 3 and a quarter.
Any age gap now is going to be at least FOUR years!
I could never have imagined that if you'd asked me a couple of years ago.
But there's nothing we can do apart from keep TTC- which we have done since July last year.
Being 38 (few months away from 39) I've now decided to investigate private fertility investigations.
I've had tests via my GP but I want more things checked out now.
It's been almost 12 months and time is running out!
I'm starting to really think something is wrong as I've conceived straight away at the ages of 34 & 37 (conceived April last year).
I know it could just be "one of those things" (I've got colleagues aged a decade or more younger than me who took 1-2 years to conceive with no reason for this) but I want to rule any problems out.
This all feels very last chance saloon for me (sorry to be so dramatic)!