Implantation bleeding?

Can be this implantation bleeding or start of my period? I’m on 9dpo today day according to the app I’m having this since yesterday 8dpo but only when I wipe nothing too much then gone at night and start again today just when wipe. I’m so nauseous yesterday then feeling so tired then nothing today just sleepy. We will gonna start our ivf journey when I confirmed this as start of my cycle.