Venting-ish. Lol

So my TTC buddy completed her first round of iui and today got her postive hpt and positive blood test! I'm so excited for her but now I'm kinda sad. I have an appointment to go the the same fertility clinic that she went to but it's not until next month. :/ Hubby and I have been ttc for a year and she just started trying last month but she had troubles conceiving her first, so she knew this time around the steps to take. I guess I just wasn't expecting for it to happen so quickly for her. Haha. I'm worried that now that she's pregnant our conversations are going to be completely different. I feel like I'm being selfish. :/ I haven't told her I'm upset at all because it's a very happy moment for her and her family. I just can't help but be upset. I always feel upset when others tell me their pregnant. :/