I haven't had a period for about 2 months now my period is irregular but I've never missed a period for more than a month. Me and my boyfriend have been having unprotected sex that's when I noticed I haven't had a period in 2 months. I took 2 pregnancy test one at night then one in the morning both were negative. I waited a week and took another one still negative. But, I've been experiencing a lot of lower back pain, nauseous a lot, cramping in my abdomen, get really tired, also my boobs are always sore. I think I'm pregnant but the test were negative, I don't know what's going on, help ?

Time to see the doctor and have him/her test you.