Worried.

I don't understand what's going on with me. I feel so tired all the time and just wanna sleep, I always feel thirsty n no matter what I drink it doesn't help. I am peeing alot more and my boobs itch. Foods are making me sick that normally dont. I don't think I am pregnant but there was one time he did cum in me he says so idk what's going on. But I feel horrible haven't missed my period yet but just alil curious. N I have been feeling sick should I take one or wait or what.