I’m scared to know the truth

So I’m almost 8 months pp and I got my first period since giving birth on April 18th and it lasted until the 22nd. It said my ovulation was May 3rd and I wasn’t tracking it like I should and my husband and I did the deed on the 28th of April and on the 5th of May.. I’m so scared that I may be pregnant again. I’m breastfeeding and my boobs hurt when my daughter nurses, I’m bloated as all hell, and I’ve had headaches off and on for the past week. What were your symptoms for all the breastfeeding moms who got pregnant within a year of having a baby?