I was just wondering if taking Iron supplements cause missed or late periods?
Its been a week since I was due for my period and still have not got it yet. Although two weeks ago I had unprotected sex, but nothing was ejaculated, so I am 90% sure that I am not pregnant. I have never had a late or missed period before, as I am really regular with my periods.

Why are you 99 % sure
Since plenty sperm in early fluid
You had sex no protection

Even condomd have 3 to 10 % fail rate

No iron will not cause it
Best wait one more week do hpt use first urine of morning

What good is 90% sure? If you are in the 10% group, or even the .000000001%, all of you in that group are 100% pregnant.