Period affected after colposcopy

Hi everyone I had a colposcopy last month around the time I was due and it knocked it out of sync for a couple of days and ended up being a lot longer than usual (also had a couple of days in between with no bleed). I’m waiting this months period which by my prediction should’ve happened last week. I’ve taken tests and all negative. I’ve counted previous periods have been 26 days apart but now I’m on day 30 and a bit confused. I’ve had some brown discharge which I thought was the start but no cramps at all which is unusual. I’m convinced I’m ill or something. My colposcopy biopsy showed inflammation and they put me back to 3 yearly smear although hpv positive. I don’t have my mum anymore or anyone female close to me to speak about this so any experience would help me. Thank you.