TTC advice?

I had a miscarriage in April of this year. I was 7 weeks along with my first child. It was absolutely devastating. My due date was supposed to be November 20th. My boyfriend and I have been ttc for several months, with more serious efforts this month. I started taking ovulation tests to help increase our chances of conception. All the apps (5 different ones) tell me I’m supposed to ovulate on the 20th, but the ovulation test got slightly darker (but not exactly positive) on the 14th. The test this morning was the lightest it’s ever been. I’m so confused. Any advice or ideas?