Buttock, outer thigh pain - bulky uterus

As per my recent USG report : Uterus: Anteverted and bulky in size, measuring approx. 13.3 X 7.4 X 4.6 cm. Asymmetric hypertrophy of the posterior myometrium. Impression:  Enlarged uterus with heterogeneous myometrium and posterior myometrial hypertrophy features may likely represent diffuse adenomyosis. According to Gynecologist, I should not experience pain during full ovulation period due to endometriosis or adenomyosis. I can have pain around period days for maximum 15 days. So, can it happen that my bulky uterus is pressing some nerve and causing this severe pain in my buttocks, lower abdomen, outer thighs ? Please advise in details about what I should do and what can cause this pain during period days+ ovulation period.