Just needing to talk "outloud" really. But any advice is more than welcome 
DC is 7. DC was several years in the making! It was very stressful all that waiting and wanting so when my beautiful baby did finally arrive safely it was such a blessing!
But then my DH went though a very difficult time and I became very stressed out too looking after him. By then we agreed to wait a bit longer before "trying". I was fed up with "trying" from first time around and with everything else so was more than happy to wait a year or 2 more than you "normally" would between children given a choice.
But yet again I am now trying and never getting there.
It is breaking my heart every month that goes by - another month that DC doesn't have a sibling to play with. I know I am a great Mother! I know I can do a great job with another one or even another 2, 3 or 4! GP was an arse when I last spoke to him.