Menstruation after giving birth (please help)

Hi mommies, Good day! I would like to ask po regarding menstruation. My baby is 5months now. Last March and April nagkaroon po ako ng mens pareho pong 2days lng at patak patak lang. And then yesterday po nagkaroon ulit ako pero malakas na then kagabi nagDo kami ni hubby and unsafe po ung intercourse. And then today po mas lumakas mens ko po. Medyo nagWorry po ako. Possible po ba na maging cause ung unsafe sex nmin kagabi or dahil bumabalik n po ung normal menstration ko? Hoping for answers po.☹