im terrified, am i just overthinking?

me and my boyfriend had sex january 1st, and my periods are always irregular and all over the place but it should start in 9 days. we had unprotected sex, but he pulled out and i know that the chance of that being successful is ~78% of the time.

today, i felt sick all morning and i vomited four times at school, now that’s always been a symptom before my periods, it had got better, but within the past six-ish months that’s been a symptom, i guess, of mine. but i’m so scared that it’s a symptom of pregnancy.

i’m only sixteen, i can’t get a pregnancy test without my parents knowing, i don’t have friends able to get me a pregnancy test (the only one who could told me i would be to blame because i made the decision so she wouldn’t help).

and at this point if i am pregnant, i think i might end it.

i know PMS and pregnancy have lots of overlapping symptoms, i’m currently experiencing nausea, headaches, slight cramps, and constipation.

my discharge isn’t one that “lines” up with pregnancy, however.

call me a dramatic, angsts teenager all you want and make fun of me, but things would seriously be over and my parents would kill me and i can’t handle this shit.

i know it’s my fault and i’m to blame for having unprotected sex, but is it a possibility it’s just PMS?

am i just overthinking because i have a tendency to do that.

should i be this worried?

i don’t know how to express this concern to him at all and i’m too afraid to tell my parents at this point as they’re not exactly accepting of the fact that’s a possibility.