Today just really sucked

Started off with my bf calling me an asshole before I could even get out the bed, then I got my period this morning. Later on I started thinking about a friend of mine that passed away and I started reminiscing and just felt sad majority of the day and on top of that my boyfriend sister just had her baby and I saw some pics of him and it just really made me feel shitty cause even though I’m not sure where my life is headed I’m sure that I really want to be a mom one day, but with pcos things aren’t easy and I just been feeling like what if that never happens for me. I just don’t know if I will be even to take it when she brings the baby over I don’t want to break down and start crying infront of everyone. I know life isn’t going to be easy it’s just hard to always try to stay positive about everything idk I just really needed to vent