Feeling Sad! 😕

So I'm 24 years old my hubby is 28 years old. We have been trying to get pregnant for 3 years now. We went to the doctor and apparently there is nothing wrong with me my husband has super low sperm count so they prescribe him clomid. I just take prenatal vitamins. This is our first month him taking clomid, I'm do to start AF on 6/17 I took a pregnancy test yesterday and it was negative. 😔 I'm trying to stay positive but after 3 years it's a little hard....