Should I have another or be done

[vulpix123]

Hello
I have 6 children in total, 5 boys and 1 girl. We had our girl last and I always said that we were complete now because of that. But part of me thinks it would be nice for her to have a sister, I know that it is not a 100% guarantee that I could conceive a girl, but should I just give up on that idea and be done!

I am early 30's and my eldest is 13 currently.
Thanks⁸

@Trekbar financially it is viable

Bedrooms - we do have a couple of them sharing a room currently but we are already looking to move out of the current property to one with an extra room
Relationship with father - all the same father and we are still together now