i stopped bleeding after birth at 2 weeks still having sex, but carried on having sex, at 13 days PP i had an implant fitted which takes 7 days to kick in, we had unportected sex before it kicked in but now and got the morning after pill still carring on with one act of unprotected sex. now at 3 weeks PP my period seems to have started but is very very light. does this mean i ovulated before my implant was fitted and and working properly could possibly be pregnant again?