Currently freaking out!!

Stacy • Married 9-6-14!! Have an amazing 7 year old boy and a 2.5 year old girl. Due with baby 3 6/24/19
Today is the third day of positive opks. Nobody answered my question earlier so I googled and the answers kinda freaked me out. One said I could be ovulating twice and another said I might already be prego. I had a period 2 weeks late (was on meds for kidney infection) but it wasn't as bad as normal. Can anyone provide some insight?!?!?