Got my period and blood clots whenever i pee. on my 1st day my flow is a bit heavy, enough to use pad. on the 2nd day, i noticed my flow become less/lighter to no blood at all. can this be an actual menstruation? or implantation bleeding? whats this?

Period: What you described is consistent with a period. The so-called implantation bleeding is generally just mild spotting. Conception occurs within day or so of the sex. It takes about 3 weeks for the embryo to make enough HCG for a positive pregnancy test. Blood test may be done a day after a missed period. Home pregnancy tests should be done 4-5 days after the missed period.