16 months breastfeeding still no period

Chloe🇬🇧

Hiya first time posting in this group , I have been breastfeeding my daughter for 16 months now and am yet to have a period , she still feeds on demand and would literally feed all day if she could haha . I havent been on any contraception since having her and now want to start trying for number 2 but do not want to stop breastfeeding yet . Has anyone got any advise ? Has anyone been in the same situation and fallen pregnant ?