Ay sis, a 43-day cycle is definitely longer than the usual 21-35 days, lalo na if you're breastfeeding kasi sometimes that does mess with your period, a few of us moms noticed our cycles got all over the place habang nag-breastfeed kami. But honestly, with the stress, lack of sleep, at brownish discharge na nangyari, plus that long wait kaya November pa bago bumalik, I think it's really worth checking in with your OB para malaman mo kung ano talaga ang nangyari at para peace of mind ka na rin, especially since you're breastfeeding. Naiintindihan ko na ayaw mo ng PT pero a quick check-up lang with your doctor would really help clarify things, sis!