PMS VS birth control

so this is the first time for me to post anything but needing some suggestions I have been on my birth control since I was 11 years old I am now 23 years old and recently noticed that my periods have not been regular my obgyn says it's normal but to me it's just weired I have been normal all these years till now and I have currently not had a period in 2 months now but I do have some cramping and some modd change around the time it's supposed to start I am currently on the patches but just got married 8 months ago and are planning on trying to conseive in the next few months on going off my birth control but just would like to know if anyone else has had this issue and I if it is normal I usually just talk to my husband about stuff like this but he does not have this same issue lol just would like some feedback from you guys on this issue I have taking pregnancy tests at home and at my obgyn appointments and all have been negative.