Late period due to stress, illness, Plan B, or pregnant?


Q: I am now 4 days late for my period. Can stress & illness, or even Plan B, be delaying my period?

Symptoms:  I am normally very regular. I have only had sex a handful of times, always with a condom. There was one moment between condoms where he was inside of me unprotected. I started my period the same day, and I took Plan B emergency contraceptive afterwards just for my own peace of mind. After taking Plan B, my period cycle lasted 8 days, when it is normally 4. The last three days were very light bleeding but it wouldn't stop.

I track my period & intimacy using an app, and we did have sex during a window of ovulation, but it was completely protected with a condom. I have been incredibly stressed, just got over a 2-week respiratory illness, and have been sleep-deprived due to midterms. I took 2 First Response pregnancy tests after being 2 days late, and both tested negative. Could these other factors, such as Plan B, my stress, or my recent illness, be causing my period to be late, or is it more likely that I am pregnant? My breast are very sore (usually a period symptom), my stomach feels gassy/bloaty, and I am tired (but am very off on my sleep cycle). No nausea or sensitivity to smells. I am so stressed about the thought of being pregnant that I'm sure it isn't helping anything. I'm planning on taking another test if my period doesn't show in a week, but I'd really like some peace of mind if possible. Can stress & illness, or even Plan B, be delaying my period?

A:   This question is currently in queue and will be answered shortly by one of our doctors. In the meantime you may browse our library of answered questions by clicking here.

Related Q&A

Q: Hi, I use contraceptives for 2 years. My last period started on September 28. I started a new pack of pills on Octobe...

Q: Hi! I had unprotected sex last October 9, 12, 13, and 14, 2016. All of which without penetration, just rubbing but im...

Q: Hi, My name is Sofia and I am 24 yrs. old. I recently had a blood test and urine test and the result is as follow...

Q: Hey I had protected sex a week after her period ended. She took plan b within 1 hour and she bleed 5 days later. Does...

Q: Hi. I had sex where my partner, and he did not penetrate. Just rubbed his penis on my vulva. He did not ejaculate. Bu...


Dr. James Obaji M.D.

  • 247 Reviews
  • Family Physician

Dr. Suneel Sharman M.D.

  • 190 Reviews
  • Family Physician

Dr. Pat Golden M.D.

  • 169 Reviews
  • Cardiologist

Dr. Kunaal Jindal M.D.

  • 112 Reviews
  • Plastic Surgeon