Tylenol and Benendryl should have no affect on the pill. You can have unprotected sex any day of the month if you are on the pill, you are protected with the pill from pregnancy.
Yes
If you had unprotected sex it is possible you are pregnant, sperm can live for 5 days inside the upper cervix and uterus.
It's still possible to get pregnant if you are not a virgin or either have unprotected sex.
Yes, it is possible, although not very likely.
Anytime you have sex, period or no, you can get pregnant.
If you had unprotected sex you could be pregnant.
yes
Have you had unprotected sex? Then you can be pregnant.
yes you can
No
The only thing your girlfriend could be pregnant from is unprotected sex.
yes, it is possible. get a pregnancy test.