Hi. So a last month I was dry humping with my boyfriend and had a wet spot on my jeans from my own arousal. I was nervous I was pregnant and took two tests which were both negative. I got my period after taking the tests. However me and my boyfriend dry humped again this month with 5 layers between us. He said he ejaculated but I couldn't see anything outside of his clothes. I am worried again I am pregannt because ever since last month, I have gotten underarm/breast pain in the middle of my cycle. I also am very tired and I spot. I also have back and neck aches. This has been for two months however every month the spotting only lasts two days and only when I wipe. Could I be pregnant? Is it implanation?