Could I be?

Hey girls so my bf and I have sex regularly and he always comes In me. When your pregnant does it ache a little if you like in your stomach? Also can you feel a little bit of a hard bump in your lower stomach that feels like possibly muscle or something? I’m so confused because I am so headachey and I have a lot of sniffles in the morning. I’m really moody too. My boobs are normally sensitive but now I get pissed of if my bf touches them. Could I possibly be pregnant? I took 2 tests a week ago and they were a negative. But I’m now starting to think I am as I’ve been waking up at night and puking and I’m always nauseous