Feeling defeated plz read

I am 25 years old and been trying for 4-5 years I am on a medicated cycle, Femara 5mg CD3-CD7, started opk testing on CD10 and got a positive opk on CD 12. So I ovulated 12-24 hrs after conformation through blood work on CD19, So on CD19 I was around 5-7 DPO on that day. . After taking a pregnancy test on CD21 with AM urine and it was negative figured it was too early. But I started having symptoms way too early for my period. My breasts were getting heavy and sore, I felt nauseous and some smells make me feel nauseous. I couldnt eat felt full. I took another test CD22 with PM urine and it was negative but I honestly thought I saw a VVVVVVVVFL but others can’t see it. I was told to test in the morning using FMU. So I am now CD23 so that puts me around 9-11 DPO today I took another and my last pregnancy test with my FMU. I could have sworn I seen another VVVVVFL but hard to get on pictures. But it could have been my line eyes. I forgot to mention I have PCOS so getting pregnant is difficult. I’m just losing hope on ever getting pregnant.