Pregnancy/Birth control

I had sex with my partner on1/17/20 I got what I think is my period1/29/20 but my period has been very more so not like my normal periods on mylan i am on the mylan mini pill may take a different times but now long hrs apart I been on since September last year never missed a pill i tested 2/2/20 it was negative is it to early? Or am I safe I’m trying to avoid pregnancy honestly right now I miscarried back in September before I started the mini pill after my d&c should I be worried ?