After my D&C my body was a bit all over the place too – my period went missing for almost 6 weeks and then was really light. Your uterus has been through a lot and it can take a few cycles for your hormones and lining to balance out again, especially if you had anesthesia or medication.
If you’ve taken a pregnancy test and it’s negative, you could give it another week and test again just in case you ovulated later than usual. But also consider other factors like stress, weight change, or illness that can delay things. I ended up booking in with my GP for a checkup and they did a quick exam and bloods just to make sure everything was healing ok. It gave me peace of mind. Hang in there and try not to stress – most women I know had irregular cycles for a bit after a D&C.