period a week late — not normal for me, pregnancy test negative

hi! i’m looking for advice or insight because my period is now a week late, and this is very unusual for me. my cycle is usually super regular and predictable, and i’ve never been this late before.

here’s some context:

•i’m a 20 year old female, 5’5”, and 59kg

•my last period started on march 28th, and my periods usually last 6 days

•i took 2 pregnancy tests and they came back negative (first one when my period was late for 4 days, second one when my period was late for 7 days)

•i had sex around the time of ovulation, but we used protection (condom)

•i’m not on birth control

•i have two myomas: one is 1.5cm, the other 0.9cm. i had a check-up this march, and everything was fine

•i’m not under any unusual stress

•no recent weight loss or gain

•no changes in my eating habits

•no signs or symptoms of my period coming (no bloating, no cramps, no sore boobs — nothing)

•no recent illness or change in meds

•i haven’t traveled recently either

i’m just kinda confused and lowkey anxious because my body is usually super predictable with this. should i wait it out longer or contact my doctor?

thanks in advance to anyone who replies!