Hello girls, could you please tell me, a mother of an 8-month-old baby…

Hello girls, could you please tell me, a mother of an 8-month-old baby recently found out that she is pregnant, should I immediately stop breastfeeding, somewhere they write that it's possible until the second trimester, we say in Kazakhstan that it needs to be stopped immediately? I am not ready myself, feeling guilty towards the child, afraid of how I will put him to sleep without a breast.