Advice/help?

We have been ttc since May. Once I came off the pill I had my withdrawal bleed and then my periods went back to normal straight away. They have been regular for the past few months and on time. My period is now 2 days late and I’m wondering if this is normal? If maybe my body is still getting back to normal? Has this happened to anyone before where after coming off the pill they’re periods were fine for a while and then suddenly became a bit off? I’ve really been trying not to jump to conclusions but part of me is thinking could I be? I’ve been having some very mild cramps as if my period is coming but still nothing. Noticed some loss of appetite over the past couple of days but other than that I can’t say I’ve had any other symptoms. My last period was on 5th of August and lasted 6 days. Thanks