Had unprotected sex july27 throw up 3days later last period july13 but feelin different and sleepin in class a lot but period came aug4 but different y?

HPT: If you had an actual period on 4 august then you are not pregnant from 27 july. However, you mentioned that it was different. If you only had spotting, then you could be pregnant. If you are uncertain about pregnancy then please take a home pregnancy test. They are inexpensive, accurate and easy to obtain. Take care. P.S. Please ensure that use protection if you elect to be sexually active.

Pregnancy test: Consider a pregnancy test followed by a visit to your obgyn. Unprotected sex can be harmful in ways other than an unintended pregnancy. Abstain, or use protection. Remember, protection reduces the risk, but you can still get stds.