Hi and welcome to BB!

I think your concern is one all single parents have, whether they have one or ten children from a previous relationship.

Im a single mum to 3 boys - all under 3 - so they are all pretty close age-wise and relationship-wise. Considering I too am only young, there is always the possibility I could end up meeting someone who would like more children and Ive had a bit of a think about the fact that there would be a big gap between kids and Im not sure I like the idea because it could turn it into a mine vs ours situation.

But in the end, siblings are siblings and I think its better to make sure its a solid loving relationship your bringing another child into rather than hurry into a relationship for the sake of having another baby because of an age gap.

FWIW, I was 7.5 when my brother was born (he's my full sibling though) and I thought it was AWESOME. I also had a sister who was 2yrs younger than me. I loved being able to help my mother out with him and we still are very close today (well as close as I can be to a moody 17yo lol)