What are the odds?

Last September I started tracking my period. I started my period on September 20th. It was a really short period, 3 days. October 15th, I got a faint positive and on the 16th I got a pretty clear positive. Those were the only two positives I got. It ended up a chemical pregnancy. In March of this year, my husband and I starting trying for baby #2 with no luck so far. On September 20th, I started my period and it was short just like last year. I thought maybe we’ll get pregnant this month like last year! Lol 😂 October 15th (8-9 dpo) I get a positive.. but just like last year, that’s all I got. No more positives. 11-12 dpo and my period is due in 2 days. I’m sure this is a chemical as well. I’m really bummed and feeling defeated... but also wtf???