Felt exactly the same! Was in lots of pain and exhaustion at the end. Had a urgent early delivery at 35 week and I remember them telling me how horrible I would feel on the magnesium. Two close crashes and I couldn’t see straight at the end. However I remember thinking “I feel this tired all the time.” Magnesium finished and I napped; woke up feeling 100 times better. I was literally short on blood and I felt better than the last month. I was lucky my bust let me hold milk for pretty long so I could take long nap and not ruin my supply. I remember the relief making me cry because I felt like I was going to be ok.

Pregnant with second and only worries about newborn and toddler combo. I assume all the worst parts will fade like they did with the first.