Suggest Treatment For Abnormal Vaginal Bleeding

Question: Hi
I just have a question that might be nothing but wanted an expert opinion.
I am 27 years old. I started my periods at age 14. when it first started it was irratic. I got bleeding for a few months non stop and then I didn't have any bleeding for the next few months. it was a bit irregular after that and I would sometimes miss periods. saw a gp at around 15 or 16 and she gave me a combined oral contraceptive to regulate my period. but I only took it for about a month or two because of nausea and migraine. back then my periods where lasting about 5 days. then as I got older, as I got into university age I think it started to get shorter.. it became maybe about 3 days a month of bleeding and then now it's 2 days and not as heavy. I do still get some back ache, breast tenderness and sometimes a bit irritable just before my periods but nothing that is bad.
it's more regular now with a cycle about 33 days I think.. I do sometimes miss a period but I notice that's when I am stressed or not doing enough physical activity (I hardly exercise) or maybe it's nutritional I don't know but is this slow reduction in the length and amount of bleed something I should be concerned about? I want to have children in the next couple years so I just want to make sure I will be able to ..

thank you.. that's reassuring. today my first day of bleeding was a bit heavier than normal but then the second day is pretty much non existent.. but OK as long as I am regular it should be ok that's good