So my boyfriend and i were fooling around about 4 months ago we are both virgins and his penis with some precum(he had peed since last ejaculation) might have touch the outside of the opening on my vagina. 12 hours later i took plan b one step and just got dizzy which is normal but then about 3 to4 weeks later i started feeling nausea for three days straight and was super hunger for a couple days and fish one night also made me nausea. which i never feel during a normal period so me and my boyfriend thought for sure i was pregnant so we got pregnancy tests. I took one on the day of my expected period and it turned out negative and then that same night got my period everything was normal, cramps and normal about of blood and everything! my boyfriend is a paranoid so he read online that periods dont mean your not pregnant and HPT fail a lot so i took three other pregnancy test over a period of 3 months and all negatives.
I dont think im pregnant, dont feel pregnant or anything but still my bf is freaking out because i burb every now and then and my farting has been kinda bad but im sure thats nothing.
All 4 months of periods have come right around when they should of all normal about of blood, not light or anything.
So what are the changes everything has failed and I am 4 months pregnant?