16 month old not sleepibg

Help! I’m at my whits end 😢 my 16 month old has always been such a great sleeper until the last few weeks and I think it’s getting worse.

Lately it’s been such a struggle to get him down for bed time, tonight for instance I’ve been trying for 3 hours and he just won’t settle.

And on nights when he does go down decently, he will wake up only a few hours later and then the fight starts of trying to get him to fall back asleep. I’m starting to lose my mind. I’m tired.

I’m almost 25 weeks pregnant with baby number 2, and I just don’t know what to do. Any advice would be great!