Conceiving baby 2 with PCOS.

I have PCOS and have had four pregnancies with very erratic cycles.

First DC took 2.5 years of not trying but not not trying.
Second DC took 11 months of obsessive trying (on my part). I finally gave up with all the obsessive charting etc, and also had an HSG test and fell pregnant.
Third DC was with a new partner and I was so convinced I couldn't get pregnant without some form of trying so we weren't always careful. After 6 months of mostly being careful I amazingly fell pregnant. It was a huge shock but we were delighted. Sadly we lost her in pregnancy.
Fourth DC we conceived very soon after our miscarriage but again she or he died in pregnancy.

2.5 year later and DP has finally agreed to TTC again. I am now on my third cycle but it seems like forever and people are falling pregnant all around me so easily. It's a real bitch.
I've ordered an Ovusense in the hope it can tell me a little bit about my crazy cycles.

Regarding Agnus Castus, I have only read that it is highly advised not to take so make sure you do your research if thinking about it. I wouldn't personally.

I have PCOS took 3 months to conceive our son. We're trying for our second now. I took Angus castus tablets to help with cycle and ate lots of spinach, drank water and lost weight. That did the trick. I haven't been for any scans or had medication. I just tried the herbal tablets and changed diet :)