Wash with benzoyl peroxide 1
While we have to be careful with salicylic acid--it can cause many pregnancy complications and even birth defects--benzoyl peroxide has been determined to be relatively safe during pregnancy (I know some people will debate this, but my obstetrician was fine with me using it). I recommend using it only once a day to avoid overdrying your already sensitive skin. I swear by Neutrogena Clear Pore Cleanser/Mask ($7). It's not only a deep cleanser, on days you feel like you really need it, you can leave it on as a mask. The smell is a little strong for my currently bionic sense of smell, but it washes right out and doesn't leave any yucky residue.
Alternate with a gentle cleanser in the morning 2
I recently discovered the Belli line of products specifically designed for pregnant moms and I'm in love. This Anti Blemish Cleanser ($22) uses gentle lactic acid to exfoliate and help fight breakouts during pregnancy. It is really light and alternating it with the stronger cleanser has made a huge difference in my skin.
Use a non-greasy moisturizer 3
I swear by Neutrogena Oil-Free Moisture with SPF 15 ($10), which is moisturizing enough and doesn't have any oils or clogging ingredients. Of course, you should go with the moisturizer that contains SPF, which is a must even (or especially) when you're not pregnant!
Take advantage of old-school remedy sulfur 5
One of my secret weapons during this time has been an old-school remedy my mom and abuela swore by back in the day: jabón de azufre or sulfur soap. Actually, any product that uses sulfur, which is safe during pregnancy, is a God-send during this time. If I'm particularly broken out, I use sulfur soap ($3) to wash instead of the benzoyl peroxide cleanser and then a sulfur spot treatment afterwards; I love Belli Acne Control Spot Treatment ($17). One thing though: the sulfur smell is NOT the most pleasant. My husband says it's a kiss repellent. But if you can stand it at night, use it until the blemishes get better. It really works!
Indulge with a clay mask every other week 6
I've found the perfect mud mask to help speed healing along. Clayspray Pore Refining White Clay Mask ($60) has worked so well on my skin, I know I'll be using it even after I give birth. The ingredients are totally pregnancy safe, so that was reassuring. After I washed off the mask, my skin felt clean and fresh without that tight, dry feeling some masks leave. I swear this let my pregnancy glow sneak through!
When worse comes to worst … 7
Talk to your dermatologist. During my first pregnancy, my breakout got so out of control, my derm prescribed Finacea, a rosacea treatment gel made of azelaic acid that is pregnancy safe. It helped SO much. But it's prescription, so not only is it pricey, it's really harsh. I only used a teeny bit and just as long as needed, so make sure you don't overdo it.