Bummed :(( So my friend's (one of my best friends) birthday is tomorrow, a few days ago I asked what…

Bummed :((

So my friend's (one of my best friends) birthday is tomorrow, a few days ago I asked what she was doing for her birthday, she told me Friday she was going out with her husband and using a gift card they got and random other things the rest of the weekend. I was excited for her to be able to get away for the night! (She has a 3yr old and an 8mo) so anyway, we chat over the next few days as usual and Friday comes, I tell her to have fun with her hubby!! Then today, I see her husband post pics of last night of her and him and a bunch of friends! Like the whole crew we'd hangout with normally if it was a night out or something (people I'd hangout with with her but not if I was by myself) and I feel sad she not only didn't invite me, but it seems like she was hiding it from me? I know I'm pregnant but come on ?I feel like I'm slowly losing friends or they're becoming distant and it makes me so sad. Especially her, because we've been friends since we were 13. So now I'm not sure how to approach it with her. And I needed to vent a little :(