Not again....

My friend just text me and asked if I am late for my period. I am by 2 days, but that's not unusual for me. She has 2 kids and I have none. Both of her babies were surprises, but good surprises. Everytime she has taken a tests she asks me to take one with her and every time hers comes out positive and mine comes out negative. She just asked me take one again with her Friday because she is a week late. I told her I would because I know it's support to her and she likes having that comfort that she won't be alone. But it is so hard for me. Just once I'd like mine to come out positive too. It's been over a year and it just hurts.