I’m not sure how to feel about this...

Yesterday I just found out that I’m going to be a sister.after 18 1/2 years of being the only child I’m a sister to a little boy. My moms been hiding her pregnancy from me and she’s 7 months and I didn’t even know! She said wanted me to focus on school. I just recently graduated and me and my husband have been trying for months at the same time I’m happy but also sad because my period was 3 days late and I was getting excited and it came this morning.im just a little bumped .