Missing Period

Nykia

So for the past 7 months I have been missing my period. I went 3 months without getting one to getting it every other month. And now I’m 3 days late. Before and after I had my daughter my period was ALWAYS on time and was the same (my daughter is 3 now) up until 7ish months ago. I went to my doctor and her result was just to be on birth control and that still didn’t do anything & my doctor is telling me I’m going through meta pause (I’m only 24) anyone have any ideas...???