Emotional Mess

I'm 13 weeks and 4 days today. I woke up with the most intense migraine I think I've ever had, my nausea and vomiting is refusing to go away, and I've already broken down a few times today. I'm physically and mentally exhausted. I feel alone even though I have an amazing support system. The father of my baby and I were never together and I feel like I hold a lot of resentment towards him. My baby was conceived while I was intoxicated and I had no idea that he came inside of me until I found out I was pregnant. In a way I feel like he did it on purpose to keep me around. I'm 26 years old and I never thought that I would be an unwed/single mother. My best friend recommended that I see a therapist because the way I've been feeling the last few days can't be good for the baby, or myself. I'm not sure if it's just the hormones, or if I'm truly depressed. Anyway, I just needed to vent a bit and I hope this feeling goes away soon.