You ask a unique question about oral lichen planus related to pregnancy and hormones. I'm tagging members @mrmie@dreamer60@alpaca@loli and @wisgrama. It must be a relief that the lichen planus has disappeared during your pregnancy, but I can understand your concern that it may come back as hormones change after birth and/or breastfeeding. I wonder if anyone else has experienced changes specific to hormonal changes during pregnancy or even related to menopause.
Gamora, Have you discussed your hypothesis with your doctor?