Endometrium 15.90mm!? I’m 34 :/ any advice

Hi everyone I’m new here, I am finding comfort in the warmness of the forum. I wanted to share what I’m going through and see if anyone has any advice for me. I’m 34, was diagnosed with PCOS at 16. Over the years I have had months of missing periods, regular periods that come like clock work, or some that come like every 40/45 days. Pretty much I’m irregular. 

I recently had a ultrasound 3/2021 and the notes were this: Uterus normal size, small ov follicles, 3 small endometrial polyps

my doctor didn’t really say much besides oh you have a few polys no big deal well monitor them. So now 2/22 and it’s time for another routine pcos check up and she ordered another ultrasound. After this ultrasound this is what they had to say: 

Uterus: enlarged/ slightly bulky.heterogeneous probably adenomyosis vascular. Probable small subserosal fibroid seen anterior, mid-rt 1.6x0.8x1.0cm 

EC-slightly thick. Heterogeneous 

Cervix: nabothain cyst

 Bilateral múltiple ovarian follicles seen, largest is simple on the rt ov: 1.3x 1.2x 1.2cm 

Probable pcos May be seen, there are no obvious ovarian cyst seen today. Bilateral enlarged ovaries seen 

Clu de sac: mild amount of free fluid seen. Mild free fluid seen anterior to rt ovary 

Uterus: 

Length-10.95cm 

Width-6.55cm

Height-5.71 cm

Volume 214.55cm 

Endometrium thickness-15.90mm

I just would like to know what you all think based on the findings, can this be a little more serious because the doctor kept saying that it was the thicker endometrium that is the reasons for a emb. So I have a emb scheduled for March 4th. I have read people saying that a DNC is better. I didn’t know that was an option the doctor said they were just being “proactive” so I guess we’ll see what happens if they can get a good sample if not I’ll ask for a DNC. I am obviously nervous but since it’s not a diagnosis of anything yet, I do not want to stress out so much, but I do not want to go about blindly so I figured I do research of my own. I do get sharp pains inside of my vaginal a lot and I notice it happens after a few days later from intercourse w my husband. I always blew it off that we don’t do it so often. Besides that there’s the heavy periods, my family’s history and spotting between my periods. Also the fact that the doctor said numbers of times the thickness of the uterus so anyway you can tell me your story or anything else I would appreciate it so much. I don’t even know if my findings are so bad, like how bad is a 15.90 mm thickness? I was one day after my expected ovulation, and I have had a tubal ligation years ago. So yes thanks in advance blessings 🙏🏽🙏🏽