Trust yourself! No one knows your body better than yourself. I don't 100% trust any doctors, no matter in China or US, I have two kids, but my period is still not regular, it comes once every two months, so what? As long as I'm healthy! Some people heard this and said to me, oh you are a lucky person, you probably can't get pregnant. I never took it seriously, it is just nonsense. MM I can tell you I got pregnant so easy, I have two kids and had abortion before.