Revenge of the teenaged ACNE! Help..

I used to have terrible acne and very greasy skin. In my teen years, I went on every single RX known to medicine, and finally--after 2 rounds on Accutane--finally got it to a manageable point (occasional pimples & white heads; still greasy but don't look like I'm sweating by 10 am every day now)

Problem is, since I got pregnant, my acne has come back with a vengeance!! Big systic zits on my neck & chin, red blotches and white heads galore...

I've been using a foaming face cleanser with 0.5% salycic acid, tea tree spot treatment, a mild toner, and facial lotion with 0.5% salycic acid (only change-up was the spot tx and toner'-I used to used a 5% salycic acid spot tx but nixed it due to the concern for the pregnancy).

Any one have similar issues? What's worked for the site and redness? Am I safe using UNDER 2% total salycic acid during pregnancy?

(We have 1 dermatologist in town and he's booked out 6 months; I plan to ask my Dr. at our 12 week appt. next month)

Thanks in advance for your beauty advice!