we had issues conceiving DD1 and it took almost 2 years due to endo etc. I had similar thoughts and worries, but i had another time-bomb to consider of my PND (unfortunately!). i wanted to be well and truly in recovery from that before we TTC and that did throw a spanner in the works a bit as i set a pretty high bar (ie symptom free for 12 months).

so we were aiming for a 2ish age gap. in the end DD2 took 9 months and we have a 3 year and 5 day gap...which i have found to be perfect

but there was the fear tbh, the fear of not being able to make another baby or to hold onto them long enough to bring them earthside (we had many first tri losses over the years). i dont know, i guess that for those of us that have fertility concerns the worry/fear of 'can I/we?' will never go away. My only advice is to only start trying when you actually really want to (sounds obvious, but i hope you get my meaning lol).