Is it safe to continue on a Yasmin cycle after taking morning-after pills?

I do agree with what Dr Ethan and Dr Jasmine have written about the risk of colchicine in breastfeeding. For treatment of oral lichen planus, there are many other treatment options available apart from colchicine and you should speak to your doctor and raise your concerns about the use of colchicine while you are breast-feeding and explore if alternative options are available for you.

I suggest to have a scan done by your gynae to check the lining of the endometrium. It is not uncommon after prolonged use that the lining thins out by quite a bit so there is nothing much to shed as a “period” as such after cessation of the pills. This situation is generally temporary, and the periods should come back soon. A second possibility is that you naturally had infrequent cycles (say every 3-4 months) due to irregular ovulation. The pill will mask this and make it seem like your periods come every month.