Disappointment

Sheena • Mommy of a daughter 4.5.10 & son 11.3.18
I have a daughter to a "sperm donor" and I got pregnant fast, I think w in a month or two. That was 6 years ago. I now have an amazing boyfriend who claims my daughter as his own, treats her like he's his biological child. Well as of recent, we decided to try for a baby, mind you he's never been the one to want his own. Idk if it's Bc we have two foster girls who are his little cousins and he sees how amazing I am w them and my own or what, but his change in heart of wanting his own w me had made me one of the happiest ladies around. I've always wanted at least two of my very own and my daughter is now 6 and I'm going into baby fever. Well we tried super hard all of May, I know it's rare to get pregnant the first month of trying.. But I got my period yesterday and I am so disappointed and I am worried that Bc I am older that it's going to be so much harder than my first was when I wasn't trying, than now with me trying.. Is it normal to feel like this?