Please need advice about ovulation and ttc 😭

[MaybeBabynotsure]

Been ttc #3 for 2.5 years. So far all tests are ok but have another appt in March as think we will need IVF .

Still trying before then in the hopes we may be lucky but I’m starting to think am I timing things wrong ??? The last 2 months I’ve switched to the clearblue ovulation tests as thought maybe I was interpreting the strip tests incorrectly ?

My cycles are 27-31 days

This cycle so far we dtd on cd 3,6, 9,11, 14,15 (cd 16 today) planning to dtd tonight as well.

I had peak fertility on the CB test yesterday morning (cd15)

Am I doing anything wrong timing wise ? I’m totally fed up of all this now

It took us 2.5 years to finally conceive after mc. All tests showed normal for both of us and it was so frustrating. I started taking Ubiquinol and Proceive 1.5 months before we finally succeeded.
Reading what you are doing and how you are DTD I don't think there's too much more you can do. 🤞🏼

We both take ubiquinol and other supplements I will look up proceive as haven’t heard of that . I was struggling to interpret the strip ovulation tests so really hoping the CB ones have narrowed down my fertile window as I’m really feeling mentally exhausted living my life in what feels like 2 week cycles