Last momth i got my period on the 19th. My bf and i been TTC we had sex on the 3,4,8,9,10, & 13th of this month my expected period was on the 18th it came during the afternoon but lasted only about 4 hours and was gone so on the 19th & 20th o was spotting had a pad on just in case but itll be clear and only visible when ill wipe. So on the 21 & 22 i began to bleed for those two days and now completely gone im so confused never had a weird period like this before was wondering if it can be implantation bleeding or my period ???