We're in a similar boat (my daughter is 3) and has never been to any nursery or childcare. I have made a few connections with local home ed groups which has been great for mixing with a wide range of ages. And for reassurance that at this age there is annoyingly little out there for 'home ed' as technically they're not being 'educated' yet. Most things are for 5yrs and up (with the expectation being that they would otherwise be at school by that age). Definitely look into local groups to meet other kids locally. I find my daughter does soooo much better hanging out with a group of mixed ages than a group of her peers anyway. I'd say that it's a bit of a myth the whole "they need school/nursery to learn how to socialise". My daughter (who has done all of her socialising at playgroups, in the park and with adults) is probably the most socially adept of all our toddler friends. And just by reading lots, and being out and about she also has amazing vocab, starting to recognise words written on signs etc.
There's usually a facebook group in most areascfor home Ed's and I find those are real handy for new friends & activities.