ivf after clomid?

💞SuE💞 • 39/ TTC#1 4 rounds of clomid at 25mg. 1 round of ivf/fet failed dec16. 2nd round fresh failed 14feb17. fet in april17
cycle buddies! I have always had a strange 34-36 cycle and since my feb mc, it's been two cycles of 34-36 and then a missed period so another one comes in at 70 days ... and this has happened, twice! is there anyone with my cycle? a scan said I have a polysystic ovary on the right but maybe due to weight gain. I'm nearly 38, and with the biological clock ticking, I'm thinking I'll try clomid next month, and then without fail I'll skip <a href="https://glowing.com/glow-fertility-program">iui</a> ( as I think success rates aren't best) and just go private with <a href="https://glowing.com/glow-fertility-program">ivf</a>? any advice? really confused