Still no period

Carmen • Expecting our baby girl December 15 💗💗💗 👶 6.16.17 wedding date. Massachusetts girl in the sunshine state. Disney lover annual pass holder ❤️ dog mom to my puggle

I’ll be six weeks pp Tuesday and only had a week or week and half forgot of light red and sometimes brown thick mucus discharge. Is that a first period after a c section ? Because I have not had a normal period yet should I be worried ? We had sex last week for first time before we got cleared but wonder when the first true period will come