Could I possibly be pregnant?

I don't know if I'm just frealimg out but for the last couple weeks I havent been feeling myself. ive been getting these horrible cramps for the past like 2 weeks and I think its been like 2 months amd I haven't got no period..I'm on depo. I took an 88 cent pregnancy test but it was negative. I'm kinda freaking out I dont know what could be wrong with me 😭😭