pcos and keto!

anyone here do keto and have pcos? i had my daughter two months ago and right after i had her i restarted keto...i was 220 when i had her and after 6 weeks i got down to 186, once i was cleared to exercise i started walking an hour a day with her...over the last week and a half i've been consistently gaining weight and i can't figure out why...i haven't changed anything in my diet and i thought walking would help? can't go to the gym cause they're all closed and we don't have the money to order home gym equipment. i understand at some point the weight loss slows down but i don't think i should be gaining, currently intermittent fasting as well and my eating window is 6 hours out of the day...any advice? i'm supposed to be getting married in october if this corona stuff is done with by then but my dress just to tell fits at 186 and i want to look fabulous on my big day...someone please help 😩😅