Having wind and hard stools

I'm 22 weeks pregnant and I'm having wind and hard stools. I cant pass out air easily that's causes gastric and bloated hard tummy after small meals. I feel like a balloon. I've been eating lots of vegetables, yourget, yacult, bananas and other fruits still the same. No improvement. I pass motion every 2 day once too. What can I do to pass motion everyday and not to have wind?