Second Chemical Pregnancy in a row


I had a chemical pregnancy in November and was devastated by the emotional toll that it took on me. I got a positive pregnancy test 4 days ago (at 16 DPO) and was scared to let myself feel excited because I was worried it would happen again. Well I just took another test this morning to make sure the line was getting darker and I got a BFN. My heart hurts and I just feel utterly devastated and discouraged. Has anyone else had this happen? Is this abnormal or common? Is it worth calling my doctor? I didn’t even go to get my blood drawn yet - I wanted to wait until Monday because of my fears that this would happen. I would appreciate any advice or encouragement. My husband is out of town and I’m all alone. I could barely bring myself to tell him.