Hello, I Am A 23 Year Old Female. I Had

Hello, I am a 23 year old female. I had protected sex (with a condom) on 31st March but my partner and I thought some semen may have leaked from the condom, so I took the ellaone morning after pill within 12-15 hours of the sex. I then had protected sex again on 17th April but unfortunately the condom slipped off. My boyfriend did not ejaculate, but there may have been precum inside the condom which slipped off inside my vagina so a small risk of pregnancy. I was due my period on 15 April, but have not had it so I am now 11 days late and I'm unsure whether this is because I am pregnant, or because the morning after pill has delayed my ovulation and subsequently delayed my period. I have taken three pregnancy tests so far, all negative. I've also been quite stressed so I'm wondering if that is delaying my period further. Other symptoms include tearfulness, anxiety/low self esteem, facial acne, cramps and back/neck/shoulder ache which I have put down to the influx of hormones from the MAP. Sorry for such a long-winded explanation, but I would appreciate any advice! Thank you, Stephanie.