13 days late and negative test - any ideas?

[JAEC]

Hi all,

Thanks in advance for any replies or advice.

I am 28, not planning a family but am 13 days late for AF. I had sex on the 29th March and was due in on the 9th April, I'd had a stressful month and just figured I was a little delayed. My cervical mucus indicated to me I was past viable egg territory on the 29th as I do tend to check it as I never have ovulation pain, white and clumpy (tmi).

I had jaw surgery on 12th April where I was under general anaesthetic, and had the standard painkillers and antibiotics. I came out of hospital with Codeine phosphate (of which I took 8 tablets over 4 days), paracetamol (took 4) and ibuprofen (took 3). But even now still no sign of AF.

I have been feeling off, nauseous periodically, especially after food, have lower abdominal pain, back pain, shooting pains to one side, wind, bloating and my nipples are a little sore (but not unbearable).

I took a pregnancy test and it came up negative (12 days after missed period).

Anyone had anything similar? I'm at a lost as to where AF is if I'm not pregnant as I've always had a regular 28-30 cycle and I although I've been stressed I'd say I've been no more stressed this month than I have been in the last 6 (broken off wedding, cheating partner, work issues, car worries etc).

Does it make any difference the person I may have conceived with is a Type 1 diabetic?

Again thanks for any advice
Xx