Could I be pregnant? Help please

Lee
Okay so I got my period jan 18-23. And I had sex with my fiance Feb 6th and 7th. Lol I only get to see him on weekends because of work. But I'm 4 days late. I want to take a pregnancy test but I'm not sure when is the right time to take one and how long I should wait. I've had this white and kind of clear discharge for about a week and I've been getting cramps thinking I'm getting my period for about a week and a half already. I feel lazy and sleepy all the time when I'm usually full of energy. And when I'm really hungry I can't even eat right or finish a normal meal I would usually eat...could I be pregnant? I'm not sure how long I have to wait to take a test. And I'm not stupid or anything its just I don't want to ask my family cause I don't want to excite anyone.

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