My boyfriend and I had unprotected sex and it was when I was ovulating and my period came a week and two days after its way lighter than usual and I've had some signs of pregnancy. How likely is it that I'm pregnant?

No one online could give you an accurate asnwer. You need to take a pregnancy test. You are assuming the potential of pregnancy every time you have sex, and you need to be prepared for the consquences and possible responsibilities, including seeking medical care.

Since you posted this in children, not in teens or not in pregnancy, how old are you, are you a young child who is having sex?

But yes you can still be, since you are having unprotected sex, can I assume you are trying to get pregnant

Obviously you're trying to conceive. I know it can be frustrating, but you're doing all you can. Having sex when you ovulate, not using protection, that's exactly what you should be doing to conceive.

Have you tried a pregnancy test? Make sure to use first morning urine.

If you're not pregnant this month don't get discouraged, there's always next month. Just keep doing what you're doing and you'll be pregnant soon.

Now, if you're a teen, and you don't want to be pregnant, a little advice. Having unprotected sex when you ovulate is what people do when they're trying to conceive. It increases the chances of pregnancy considerably.

If you wish to lower the odds of getting pregnant, then get yourself on the pill, and use a condom. Just fyi, even with the pill and a condom, you could still get pregnant. In fact, any time you have sex you could get pregnant, what you're doing just increases the odds.

Good luck.