Age gap between siblings

So we want a two year gap but due to have some conceiving problems it’ll be about 4 years apart please tell me that this age gap still works ? I’m in distraught my husbands siblings are all 2 years apart and my side of the family have huge age gaps I’m 6 years apart my brother and 9 from my sister ... I’m the oldest and always felt like a “Nanny” more than a sister ... I really wanted my children to be close but of course the universe didn’t want that. ( Also not pregnant yet) my DD just turned 3. , and everyone around me is gettign pregnant I’m just emotionally done 🥺