Well me and my boyfriend had unprotected sex June 7 and on that same day it was my last day to be fertile.. Well my period was late and it didn't come until June 29 and now it's very light when it's usually heavy...

It's possible since you had unprotected sex. You will have to wait until next month to see if your period comes as expected. If not, wait two weeks then test using first morning urine.

How are you tracking your fertile days.

I check my fertile days using my period tracker calendar on my phone

Then you have no way at all to know your fertile days. The phone app does not properly track, think of it more as a game.

You test your ovulation using ovulation kits and/or basal body temperature, not phone apps. While phone apps are handy in determining your menstrual cycle, they are not at all reliable.

You test your ovulation using ovulation kits and/or basal body temperature, not phone apps. While phone apps are handy in determining your menstrual cycle, they are not at all reliable.

Well I also use a calendar I carry with me in my purse to check to see when my period comes on and it was still late coming on

Had unprotected sex on June 7th period was late. But it came on June 28th. Been having pain also lower back pain. And period went off the next day.. Could I be pregnant?

The answers haven't changed from when you asked this same question less than a week ago.

Had unprotected sex on June 7th period was late. But it came on June 29th. Been having pain also lower back pain. And period went off the next day.. Could I be pregnant??And how long do I have to wait to take a pregnancy test?

As J9, a labor and delivery RN said - "It's possible since you had unprotected sex. You will have to wait until next month to see if your period comes as expected. If not, wait two weeks then test using first morning urine."

You are going to get no benefit from posting on AMHD if you don't read the answers.