My progesterone level was 1.2, this was checked in the morning 3 days post ovulation. day prior to ovulation ultrasound showed a 16mm follicle which was 4 days prior to test. i'm concerned its low, is this too low to conceive? did i ovulate?

Ovulation testing: Ovulation testing should be done in the midluteal phase typically 7 days after ovulation. Testing 3 days after is a bit odd and makes it very hard to interpret the result. I would see an Obgyn and schedule official ovulation testing. These tests must be done in a particular way to get interpretable results

Concern: With the concerns you submit, I strongly recommend you see a Gynecologist as soon as possible. Please let me know how things go.