feeling hopeless

Am 15 weeks pregnant and am so happy and excited to be a mom ,praying this whole process will come true for me... My boyfriend knows am pregnant we both did the test he seemed happy with the results coming out positive but lately we don't spend much time together always has excuses to be with it hurts I don't wanna lie, it seems am on this process alone it's stressing me and hurting me at the same time , I know the condition am putting myself is not health for the baby but am feeling hopeless... Please help I need advice