Needing some help

So this our first month of ttc with letrozole, this is the week i should have been ovulating so we had sex every other day since last Saturday. Well yesterday according to glow and my timeline was the day i should have ovulated. This morning i woke up with alot of pressure in my lower abdomen which is not a normal thing for me. Has anyone else experienced anything like this? I am dont want to read to much into cause i am so afraid to get my hopes up.