I might not be the best person to help with this, as after the first trimester (when I suffered badly as you ladies are), I had the best skin of my life in the second/third (where I am now). I've always had hormonal acne and prior to pregnancy, found that prescription retinol was the only thing that kept it under control, and obviously that's out for the time being.
So, while I have good skin right now, I can't be sure if it's the routine I implemented after the first few weeks of zits, or just the change in hormones. Anyway, here's what I'm using:
-as other have said, a salicylic cleanser; I'm using the Cerave one which is great and cheap as well
-in the mornings, a hyaluronic serum and (very important) a niacinamide one. I use the basic ones from the Inkey List and mix them together. Being consistent with the niacinamide has really helped, I think.
-basic, non-fancy moisturiser and sunscreen
-in the evenings I've been using the Allies of Skin Promise Keeper Facial, which is stupidly expensive and something I bought when at my wit's end. It's pregnancy-safe and quite potent, but again, hard to say if it's this or the hormones that have helped the most!
Anyway OP I wish you the best of luck sorting this out, having suffered for years I know how frustrating it can be! Hopefully you get a natural glow-up in a few weeks anyway. ☺️