Ejaculation Near Vulva. Would That Cause Pregnancy?

So here is the situation: My bf and I fooled around two months ago we didn t have sex but he ejaculated on my tummy and a drip got on and near my vulva ....since then I have been terrified of being pregnant and I have anxiety problems so I have been nauseous for the past two months....I also have had two periods since we fooled around and we haven t fooled around since. The periods were five days rather than seven but I still had heavy bleeding tmi sorry. Also that would make me around 10 weeks pregnant and I think i can feel my uterus getting bigger and tighter. Could I just be psyching myself out to feel bigger in my lower abdomen? I would think its a stomach bug however it s been here for two months making me worry and it s only in my lower abdomen and pelvic region making me freak out cuz I think it s my uterus growing or something. I ve really started to feel bloated lately, but maybe cuz I m supposed to get my period in a week? Either way it s uncomfortable and scaring me! I can t take a test I am on an internship in Smalltown Alaska where everything literally has to be brought in on a barge so it is way too expensive... A detailed answer or personal example is much appreciated!! Im freaking out! Am I pregnant or crazy from anxiety!? I have not been overly tired, my boobs have not hurt at all, i haven t noticed if they have gotten darker nipples but i don t think so. My main concerns are the nausea and the tight/ bloated stomach, and loss of appetite . My second period was almost a week late but that could be from stress .