Forgot one pill, had unprotected , took morning after pill-pregnancy symptoms?

In my opinion, even without taking the morning after pill, you were probably safe to NOT get pregnant. Since you also took the morning after pill, I would say 99.9999999% you are not pregnant and you're just worrying yourself for nothing. Who knows what the effects of the morning after pill are - maybe constipation? Regardless, I wouldn't worry at this point.