Postponing visitors visit.

My side of family hadnt had a baby for a long time and I am about to give birth to one soon. During this covid period and personal space needs isit selfish of me to ask them(relatives/grandparents) to postpone their visit 2-3 weeks post birth? Of course direct family members are welcome( I am not mean ) but i tried suggesting this to my mum she does not agree and saying that they might sulk and be offended..but I just want my personal space for 2-3 weeks 😔#advicepls