Pregnancy or something else

Paulina

I’ve been in BC for about 7 years and have never had a problem. I’ve been on blisovi fe 1/20 for about two years with no problem but the last couple months have been weird. My boyfriend and I do have unprotected sex and the only method of birth control is the pill in May I had no period at all but it came June. This month I had light brown spotting that was the size of a dime for 5 days straight. I took a pregnancy test after 9 days late but it was negative. I’ve continued to feel nauseous and have a headache and most recently felt some cramp like feeling in my uterus kind of like period cramps and my nipples are sensitive. Has anyone else experienced this and when should i test again?