My boyfriend and I had sex for the first 4 days ago we used a condom, he completely washed himself off before hand and we doubles the condom with him pulling out before ejaculation, we did the same thing a day ago, again with no ejaculation near my vagina. I am very paranoid because I am not on the pill due to not wanting to involve my parents. I've noticed my breasts are very tender but is it even possible to feel symptoms only 4 days after sex? My period starts in roughly 10 days so that may be it but that seems early. I feel as if I am the only one who mercilessly worries about being pregnant and I don't want this anxiety anymore, my boyfriend is insanely understanding and would be willing to stop if needed. However we both enjoy the sex. (I don't understand why they say your first time will be anti climactic) how can I stop worrying?