to test or not to test

Ch
I know it's not hard to test, but wanted yalls opinion. My son is 7 mo and my period returned at 4 months pp. my first 3 periods were all around 31 days apart. I'm now on cycle day 35 with no period in sight. I had quite a bit of cramping the last couple days and thought my period was starting every time I went to the bathroom but nothing. Not even cm and then the cramps completely disappeared this morning. My husband and I did have unprotected sex but I have no clue when I ovulate since my cycles have been longer than my pre pregnancy periods were. Would you test or would you wait it out?