I NEED ASSURANCE AND HELP BADLY HELP PLEASE. On April 12 my boyfriend did foreplay on me without semen on his hands, and april 22 was the dry humping with our clothes, he has underwear and shorts and also me. And my boyfriend did not release semen on me but just small amounts pre cum i think small wet part on his underwear. Our genitalia are rubbing each other while doing the dry humping doctor. I'm really scared will it cause pregnancy doctor? This was the last incident. We did not have sexual intercourse. Just the  humping with our clothes. I got period on april 27-may 1. No sexual activity after april 22 and on the month of May. I did a transrectal ultrasound on May 18 and this was the result:

Cervix: 2.55 x 2.05 x 1.77 cms Uterus: 4.42 x 4.26 x 3.40 cms Endometrium: 0.70 cm Ovaries Right: 3.92 x 2.95 x 3.43 cms Left: 2.79 x 2.52 x 1.45 cms

Description: 'TRS shows a retroverted uterus, normal in size with no myometrial pathology. The endometrium is thin and homogenous measuring 0.70 cm. The left ovary is polycystic like in appearance. The right ovary has normal tissue and cystic structures as follows: about 2.92 x 2.45 cms., thin walled, anechoic suggestive of cystic follicle and about 1.47 x 0.75 cms and 1.47 x 1.16 cms., thick walled, containing medium level echoes suggestive of endometrial cysts. No fluid in the cul de sac.

Diagnosis: NORMAL RETROVERTED UTERUS. THIN, HOMOGENOUS ENDOMETRIUM. POLYCYSTIC LIKE CHANGES LEFT OVARY. RIGHT OVARY HAS NORMAL TISSUE WITH T/C CYSTIC FOLLICLE AND T/C ENDOMETRIAL CYSTS AS DESCRIBED

Doctor said it might be pcos because on month of march and april my blood flow is light to medium which lasted for 5 days. I tried blood serum pregnancy test on May 20 it was negative, i tried urine test on May 23 it was negative. I tried pregnancy test may 26 it was negative. Is the test results accurate already? Is there no pregnancy? Will I expect to get my period doctor? It's June 3 now according to my app im late for 1 day and may 30  was my expected period and I am not experiencing cramps or signs of getting period.  My cycle varies per month before i get period (33, 35, 37, 34 days). I tried pregnancy test may 30 and June 2 morning it was negative. I am worried about it. Please help me im scared.