OK, quick background is that my SIL is recently married and on Sundays she and her dh lok after her two step children. I arranged one event to get the whole family together at Easter so my children could get to know these two children. Anyway having discussed it with MIL last week I sent SIL an email first thing on Monday inviting them all for lunch this Sunday - and I haven't had a reply. I would really like to know if they're coming as I have also invited the ILs and also need to go shopping, arrange other hings for Sunday. I feel awkward about phoning or emailing or texting now as I worry it will seem like I am hassling her.
I am pretty stressed about the whole thing anyway tbh as SIL is a bit picky about her food and I don't really know her dh or the children at all so I am fretting about what to cook.