In my teens and early twenties, I used to casually say "oh, yeah, I guess I'll have kids. But not until my thirties. I want to live first"
Then, I started dating my partner when I was about 23.
About two years into our relationship (aged 25) I went through the same phase as you. I was thinking "babies, babies, babies" constantly!!
But didn't act on it because it wasn't a good time. And I wasn't sure if it was just hormones. But it did make me realise that I wanted kids more than I thought I did.
Then last year, aged 28, I started to think about it again. By then I'd been with my partner almost five years and he was quite keen for babies. I started to realise that I HAD lived and that perhaps (after 10 years of working and partying hard) I was ready to prioritise someone else over myself.
I did discuss it with a couple of friends, and also discussed it with my partner. Even though we didn't have much money, were just renting etc - we realised that we had the important elements of love, health and family support. And our own parents were all fit and healthy, which was quite important to us.
So we decided to take a leap/risk/chance and see what happened...
Now 30 weeks pregnant and feel confident we made the right decision.
I remember finding it VERY hard to gain information/advice about the 'right time'. It is a bit of a taboo subject - suddenly people announce that they're expecting a baby, but nobody discusses whether or not to start trying.
The great thing for you is that, at 25, there's no massive hurry. You could just mull it over for a year or two, then see how you feel. You'll still be young and healthy in a couple of years.
GOOD LUCK!!