I'm so confused right now so, since the girls have been born I have had 3 periods which consisted of…

I'm so confused right now so, since the girls have been born I have had 3 periods which consisted of like 14-15 days. So this time, on day 14/15 (while still bleeding) I ovulated. I could tell a difference in my body temperature. Today would be like 2-3 dpo and everyday after I ovulated I've had this pink discharge and I've been cramping constantly. The discharge stopped last night but returned this morning with cramps. I'm trying to rule out pregnancy because I already have my hands full with the twins and wasn't wanting another baby so soon 😔