2 months no period

2 months no periods. I tested last month and it was negative. My fiancée and I have been actively trying. Ive been dealing with a lot of breast pain, irritability, wanting to eat everything in sight, and nausea.

I’m unsure what to do.

My friends are saying to get the blood work or an ultrasound since they are pretty sure I may be pregnant.

I’m just unsure since I don’t want to lose hope.