Implantation Bleeding ??

Kierria

So I need an opinion...I’ve been back on the pill since August and have been taking it correctly for the most part but I have had to double up a few times...this past week was extremely depressing for me so I completely forgot to take the last four active pills for the third week (wed-sat) my cycle was supposed to start this week which it did but only for 2 days and stopped abruptly this has NEVER happened ...I stopped tracking my sessions so I’m not sure if around the time I doubled up if I ovulated or not...could it be bc I didn’t take the last 4 and it offset my cycle or should I take a test to make sure