to be hurt at being left out?

[womma]

I see the three other women from my ante- natal class every week and we all get on well. I meet them every week for lunch with our babies and they do other things together like exercise classes and baby massage etc which I don't do (by choice, I'd rather save my money until my DD is older and can participate more). I must confess that by not going to these 'extras' I often feel a bit out of the loop with them all when we meet up, but it's been my choice and it's always okay when we meet up so I thought it was fine.
This week I found out that one of them is having the other two and partners for sunday lunch in a couple of weeks (they don't know I know about this, I saw it written on the calendar in her kitchen). Obviously me and my hubby have been missed out of the invite, which I feel quite gutted by. I haven't felt like this since I was at school!
I think it's best not to say anything about this, but I know that if any of them found out that they'd been not invited to something that was arranged within the group they'd be gutted too.
Am I being unreasonable, and I'm right thinking I should just get on with this and keep my gob shut aren't I?

If you are stuck for ideas on free/cheap things to do ask your health visitor for a list of local groups. Also librarys sometimes do baby bounce once a month and swimming pools have baby/tots swim sessions.

I have a similar thing with my NCT group and although I feel that it is partly my fault as I don't religiously go to meet ups I find it really unkind to deliberately not invite people to things because they didn't go to the last thing.

One of our group stopped inviting another woman as she never replied - it might be a bit rude not to say 'Sorry, I can't make it' but it is also not compulsory to go to everything and an email costs nothing.

Another one only sent postcards when she went on holiday to the two people she saw most often in the group. Again I can see why but it happened to my week to play host and it left me feeling a bit used as if I was just providing a venue and they weren't really interested in seeing me or my DD.

I always include everyone for this reason and make an effort with the others that don't always join in. Seems very petty to single people out but there is not a lot you can do about it.