TTC baby no.2 - advice please 🙏

Me and my husband have been TTC our second baby for 6 months, with no luck so far 😢 feeling so deflated and miserable about it.

I came off the combined pill in October, so first proper cycle was November. My cycles were fairly normal to begin with but with late ovulation according to OPKs, but the last two months have been 40ish days with positive OPKs around CD32. I’ve been tracking bbt too, but not overly accurate as I wake at different times throughout the night. We have a 2.5 year old already, who was conceived first cycle so we were incredibly lucky.

I guess I’m just looking for any advice anyone may have, or anyone in a similar boat? Have been taking folic acid for the last 4 months, but haven’t tried anything else. I’m unsure if I’m actually ovulating, as have positive OPKS but they’re late in my cycle and I know they don’t actually confirm ovulation. The docs won’t do bloods for another couple of cycles.

Thank you!