UMBRELLA

When I was about 13 or 14, I jizzed on a pizza by mistake while masturbating in its direction, with my parents and siblings upstairs. I just masturbated in the kitchen then suddenly I had to cum. I tried to make it to the bathroom so I could jizz on the mirror or something, but then I fell dongfirst into the pizza box, and came all over it. I suddenly realized I had came on the pizza my family was going to eat so very quickly I took some bleach wipes and wiped down the pizza, I told my parents I couldn't eat due to being full, and they ate the fucking pizza o_O The next day or so, my mother announced she was pregnant, and gave birth to my brother (who has mental problems) nine months later. Do you think I impregnated my mother, or is it just some freak coincidence? Please tell me, I've been haunted for over 3 years now.