Advice?

I'm looking for some advice/knowledge please;

I'm currently late for AF - according to this app it's 4 days.

I've been bleeding on the 15th of each month for a week since November 2020, which I thought was AF being regular again.

I had my implant removed on the 15th Jan 2021 (over-due due to Covid, meant to be out November 2020) & was 'on' at that time.

I haven't had any signs of bleeding since Jan.

Is this my body going back to "normal" after the implant being removed? I did a cheap PT this afternoon after work & it's BFN 👎🏻