Could I be pregnant?

Sandi

So I had my first baby almost 7 months ago, and I got my period back 4 months ago (not breastfeeding). My period was previously irregular and it took about a year to conceive or little guy with help from Clomid. My husband and I had an oopsie moment a few weeks ago, and I also never went back on birth control. I keep track of my cycles and the past 3 months it has been 41 days, 40 days then 39 days. According to the app, my husband and I had our oopsie 10 days before I was supposed to start my fertile window. And I'm supposed to start my period in 10 days. The past couple of weeks I've been having similar symptoms to my pregnancy last year. Cramping, extreme fatigue, indigestion and nausea. I'm still feeling all of that and I could just be my period coming but it is just a different feeling. Is it insane to think I might be pregnant!? Sorry for the long text! I'm just not sure if I should wait it out until Im supposed to have my period or if I should go ahead and take a pregnancy test. I have a hard time believing I would get pregnant so easy after all the effort we put in last year!