Suddenly so exhausted!

The past 2 days I've been having extreme exhaustion, can barely keep my eyes open during the day, sleeping most of the day which hasn't been normal for me lately. The past month I've had tons of energy and a bit of insomnia and now the complete opposite. I haven't done much to wear myself out so not sure why the sudden change. I've also gotten a bit more hormonal over the past 2 days :/

Could these be signs my body is prepping for labor?! 38 weeks 5 days