From the description it seems you are having severe grade acne. To treat the same, only topical creams would not work. You need to take oral drugs like azithromycin
pills. Isotretinoin is a wonder drug for acne but as you are planning pregnancy, it is contraindicated. While being on isotretinoin and three months after stopping it, pregnancy is contraindicated.
Kindly consult a dermatologist
nearby so that after analysing your acne grade, proper customised treatment can be suggested.
Hope that helps