Girls, hi. Can you tell me how your cycle is with breastfeeding? After…

Girls, hi. Can you tell me how your cycle is with breastfeeding? After childbirth, my period came after a year. January 14th was the first day. And if we're going by the previous cycle, then I have a delay of 10 days now. We were also doing Keks, based on the previous cycle, so as not to get to ovulation. I did two tests, both negative. Now I'm worried. I'm not planning a third child yet.