helllp! am I pregnant?

Hi ladies , My boyfriend is in the military and he came back on leave for 4 days (September 2nd-5th) so we had unprotected sex on the third he pulled out. However on the 4th we had sex unprotected first then he pulled out and then after we used a condom and he took it off mid sex! And pulled out at the end. I'm not too familiar with Pre-cum and how it works so I'm like super freaked out! But lately I've been feeling kind of moody then one day my stomach had like a cramp and my whole lower body hurted my legs and back and everything. Is it too early to have symptoms? And when could I take a test after how many weeks . It's two weeks now ***MIND you I started my period the 5th so literally the day after