2 periods am I ovulating?

I get my period 2 times a month. On the 10th of every month which usually last about 5 -7 days and then a week or 2 later which last about 4 -6 days. I have been to the doctor and had tons of blood test, they all come back normal. I stopped taking birth control in late May. My hubby and I are TCC. If I have my period 2 times a month am I ovulating and when about what days would I be ovulation. I don't know how to calculate it. All the info is welcomed thank you!