I came off my pill for a month and still haven’t had a period..... I’m scared

Hi ladies, so I’ve been on the contraceptive pill for over 3 years now and since lockdown I’ve just been too lazy and forgetting to take it, so I said to myself it’s fine I’ll just take it next month. I started to realise I haven’t had a period and I’m slightly worried. Last time I had sex was around the end of November when I was taking the pill and using condoms. Plus we didn’t even finish... is it just withdrawals from the pill like the Internet is saying?!