Rest assured that your clock isn't ticking, you're broody, and there's a huge difference
Being broody happens to the best of us, I remember the first time it happend to me, I was about 17, had only 1 sexual encounter to speak of, and had no bf... But dammit I wanted a tiny baby so bad, with tiny feet and tiny clothes etc...
Even now, it happens to me from time to time too (moreso now since I turned 30) and I've always been adamant that I'll never have another child.
Ssssh, don't tell a soul, because I haven't admitted that to anyone before now.
So yeah, just because the urge is there and the idea looks lovely in our heads, doesn't mean we should follow through right now, if at all.