Hey. So i had late periods like it was late by 7 days. And it was kinda light and short. I usually have a flow of 4-5 days. But this time it was for 3 days with 2nd day night being light. I was confused if this was periods or implantation bleeding so I took a home pregnancy test. It was I-can pregnancy kit. It came negative. But right now, I just read that you should take a pregnancy test after 2-3 days of implantation bleeding. So should i take one more or is it safe enough? Also, I had oral sex on 23rd October. And its been almost three weeks to this now. I took a lot of stress because my periods were late.