Not sure where to go from here....

Last Monday I took a pregnancy test and got a faint line, but every test after that has been negative 😭...My husband and I have been trying to have a baby for a year now.

I went to the doctor in March because my cycle is off and when I take ovulation tests they show that I am NOT ovulating. They did a blood test (to check my Thyroid) and said that I was fine. They basically told me to keep doing the ovulation tests. I have 3 different tests and one of them showed that I was ovulating for 2 days in June, but that is it.

I have a friend that said I need to go back to the doctor and have them do a FULL PANEL Blood Test.

Just not sure where to go or what to do. Any advice is greatly appreciated!