waiting!!!

China
Ok my last period was in February, I been ttc for over six years now with my husband. I didn't see my period for march month. I'm scared to do a pregnancy test because I'm always getting let down, and the fact that I was told I have pcos and I been taking the metformin pills for couple months with no luck so I got of the pills cause I saw my period every month now. But don't know why this month it skip. What should I do? I don't feel no way different in my body.