Hai I Am 32 Years Old Planning Pregnancy, This Time

Hai I am 32 years old planning pregnancy, this time my periods got delayed by 12 days, Day 35 from my last LMP I did scan result, endometrium 11mm, 8 follicles in the right ovary, biggest one 18mm* 13mm and left ovary less than 10mm again i did my scan today result: endometrium 14mm thickness , few follicles seen and one hemorrhagic cyst in left ovary. My pregnancy test was negative. Why I have follicles on my day35 and why my endometrium is thickened and what is hemarrahagic cyst