Should I start worrying?

T

I’m on the pill (have been for 3 months) and I’m on my placebo week. But I don’t have any of the usual signs that my period is coming. No cramping or anything. I take my pill on time (+/-1 hour) and we always use condoms. We haven’t had sex since early February because of quarantine. I got my period at the end of February but my period in March was so light and only lasted 2 days (still dark red/brown with clots). I keep reading about women still having their periods and being pregnant. Should I start worrying?