Too busy?

I've been trying to get ahold of my friends lately and it feels like everyone is too busy to talk. I'll make supportive comments on social media or text to ask how they're doing, or sometimes call and there's no reciprocation, no response, or one word answers. I always send birthday cards to their kids and as far as I know there's been no falling out. It's just... silence. I'm expecting my first child and want to maintain my friendships. It's difficult for me to get out right now to make new ones or commit to joining new hobbies in my condition. I don't live within driving distance of the friends I've known the longest and even before I moved everyone seemed busy with their families. I've made friends where I live now, most are single with no children. It feels like ever since my bachelorette party and wedding even those friends hardly talk to me now. I wasn't a bridezilla, and even my bridesmaids I've known for 20 years aren't talking to me. Not sure what's going on but after I announced my pregnancy no one's asking how I'm doing (I called everyone individually, and didn't just post). I would love to have friends to talk to or text once a week or whenever, and get a coffee once in a while, and have friends genuinely ask about what's going on in my life. I'll keep trying but it's getting old and not feeling like I'm close to anyone. Has anyone else experienced this after life events and what did you do about it?