Has anyone else had different lengths of cycle post laparoscopy?

[RedA28]

I had a laparoscopy 8 weeks ago. Grade 4 endo diagnosed and excised. I recovered very quickly and have felt completely back to normal since about day 10 post op. The only thing is that since the op my cycles have become a lot longer than before! I normally have a short cycle of 25 days and am pretty regular. But since the op I've had a 28 day cycle and am now on day 32 of this cycle with no sign of my period (I'm not pregnant, I checked!). Anyone else had this? I know it's still very soon after the op and probably just healing but can't help being paranoid!